+

WO1992010179A1 - Utilisation d'agents antagonistes du recepteur de l'angiotensine ii dans le traitement de la degenerescence maculaire - Google Patents

Utilisation d'agents antagonistes du recepteur de l'angiotensine ii dans le traitement de la degenerescence maculaire Download PDF

Info

Publication number
WO1992010179A1
WO1992010179A1 PCT/GB1991/002217 GB9102217W WO9210179A1 WO 1992010179 A1 WO1992010179 A1 WO 1992010179A1 GB 9102217 W GB9102217 W GB 9102217W WO 9210179 A1 WO9210179 A1 WO 9210179A1
Authority
WO
WIPO (PCT)
Prior art keywords
methyl
alkyl
butyl
angiotensin
pharmaceutically acceptable
Prior art date
Application number
PCT/GB1991/002217
Other languages
English (en)
Inventor
James Hill
Original Assignee
Smithkline Beecham Plc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Smithkline Beecham Plc filed Critical Smithkline Beecham Plc
Priority to JP4501726A priority Critical patent/JPH06503333A/ja
Publication of WO1992010179A1 publication Critical patent/WO1992010179A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/47—Quinolines; Isoquinolines
    • A61K31/4709—Non-condensed quinolines and containing further heterocyclic rings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/415—1,2-Diazoles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/4164—1,3-Diazoles
    • A61K31/4174—Arylalkylimidazoles, e.g. oxymetazolin, naphazoline, miconazole
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/4164—1,3-Diazoles
    • A61K31/4178—1,3-Diazoles not condensed 1,3-diazoles and containing further heterocyclic rings, e.g. pilocarpine, nitrofurantoin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/4353—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems
    • A61K31/437—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P27/00—Drugs for disorders of the senses
    • A61P27/02—Ophthalmic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00

Definitions

  • renin-angiotensin system with converting enzyme inhibitors, such as captopril, has proved clinically useful in the treatment of certain disease states, such as hypertension and congestive heart failure [Abrams, et al., Federation Proc., 43:1314 (1984)]. Furthermore, evidence suggests that inhibition of this system may be beneficial in treating macular degeneration. Since AII is the biologically active component of the renin-angiotensin system responsible for the system's peripheral effects, the most direct approach towards inhibition of RAS and in particular AII-induced macular degeneration would be blockade of angiotensin II at its receptor.
  • the present invention provides a new method of treatment of macular degeneration in a mammal which comprises administering to a subject in need thereof an effective non-toxic amount of an angiotensin II receptor antagonist.
  • the present invention also provides for the use of an angiotensin II receptor antagonist in the manufacture of a medicament for the treatment of macular
  • the present invention is a therapeutic method for treating macular degeneration in mammals.
  • the method utilizes a class of antagonists which have been
  • angiotensin II receptor antagonists include, but are not limited to, the following:
  • R 1 is adamantyl, phenyl, biphenyl, or naphthyl, with each aryl group being unsubstituted or substituted by one to three substituents selected from Cl, Br, F, I, C 1 -C 6 alkyl, nitro, A-CO 2 R 7 , tetrazol-5-yl, C 1 -C 6 alkoxy, hydroxy, SC 1 -C 6 alkyl, SO 2 NHR 7 , NHSO 2 R 7 , SO 3 H, CONR 7 R 7 ,
  • n 0-4;
  • R 2 is C 2 -C 10 alkyl, C 3 -C 10 alkenyl, C 3 -C 10 alkynyl, C 3 -C 6 cycloalkyl, or (CH 2 ) 0-8 phenyl unsubstituted or substituted by one to three substituents selected from C 1 -C 6 alkyl, nitro, Cl, Br, F, I, hydroxy, C 1 -C 6 alkoxy, NR 7 R 7 , CO 2 R 7 , CN, CONR 7 R 7 , W, tetrazol-5-yl,
  • NR 7 COC 1 -C 6 alkyl NR 7 COW, SC 1 -C 6 alkyl, SO 2 W, or
  • X is a single bond, S, NR , or O;
  • R 3 is hydrogen, Cl, Br, F, I, CHO, hydroxymethyl
  • R 4 and R 5 are independently hydrogen, C 1 -C 6 alkyl, thienyl-Y-, furyl-Y-, pyrazolyl-Y-, imidazolyl-Y-, pyrrolyl-Y-, triazolyl-Y-, oxazolyl-Y-, isoxazolyl-Y-, thiazolyl-Y-, pyridyl-Y-, or tetrazolyl-Y-, except that R 4 and R5 are not both selected from hydrogen and
  • C 1 -C 6 alkyl and each heterocyclic ring is unsubstituted or substituted by C 1 -C 6 alkyl, C 1 -C 6 alkoxy, Cl, Br, F, I,
  • Y is a single bond, O, S, or C 1 -C 6 alkyl which is straight or branched or optionally substituted by phenyl or benzyl, wherein each of the aryl groups is
  • R 6 is -Z-COOR 8 or -Z-CONR 7 R 7 ;
  • Z is a single bond, vinyl, -CH 2 -O-CH 2 -, methylene optionally substituted by C 1 -C 6 alkyl, one or two benzyl groups, thienylmethyl, or furylmethyl, or -C(O)NHCHR 9 -, wherein R 9 is H, C 1 -C 6 alkyl, phenyl, benzyl,
  • W is C n F 2n+1 , C n F 2n+1 , wherein n is 1-3;
  • R 8 is hydrogen, C 1 -C 6 alkyl, or 2-di(C 1 -C 6 alkyl)-amino-2-oxoethyl; or a pharmaceutically acceptable salt thereof.
  • Particularly preferred compounds are (E)-3-[2-n- butyl-1- ⁇ (4-carboxyphenyl)methyl ⁇ -1H-imidazol-5-yl]-2- (2-thienyl)methyl-2-propenoic acid and (E)-3-[2-n-butyl- 1- ⁇ 4-carboxynaphth-1-yl)methyl ⁇ -1H-imidazol-5-yl]-2-(2- thienyl)methyl-2-propenoic acid; or a pharmaceutically acceptable salt thereof.
  • the most preferred compound of this invention is (E)-3-[2-n-butyl-1- ⁇ (4-carboxyphenyl)methyl]-1H- imidazolyl-5-yl]-2-(2-thienyl)methyl-2-propenoic acid methanesulfonate.
  • Preferred compounds included within the scope of this class of AII receptor antagonists are:
  • Preferred compounds included within the scope of this class of AII receptor antagonists are:
  • Preferred compounds included within the scope of the class of AII receptor antagonist are N-[ ⁇ 2-n-butyl- 1-(2-chlorophenyl)methyl-1H-imidazol-5-yl ⁇ methyl- carbonyl]-L-phenylalanine andN-[ ⁇ 2-n-butyl-1-(2- chlorophenyl)methyl-1H-imidazol-5-yl ⁇ methylcarbonyl]-L- (2-thienyl)alanine; or a pharmaceutically acceptable salt thereof.
  • R 1 is adamantyl, or phenyl, biphenyl, or naphthyl, with each aryl group being unsubstituted or substituted by one to three substituents selected from Cl, Br, F, I, C 1 -C 6 alkyl, nitro, CO 2 R 7 , tetrazol-5-yl, C 1 -C 6 alkoxy, hydroxy, SC 1 -C 6 alkyl, SO 2 NR 7 R 7 , NHSO 2 R 7 , SO 3 H, CONR 7 R 7 ,
  • R 2 is C 2 -C 10 alkyl unsubstituted or substituted by
  • X is a single bond, S, or O
  • R 3 is hydrogen, Cl, Br, F, I, CHO, hydroxymethyl, COOR 7 , CONR 7 R 7 , NO 2 , or C n F 2n+1 ;
  • each n is 1-3;
  • n 0-4;
  • R 4 is CO 2 R 7 , CONR 7 R 7 , or tetrazol-5-yl
  • Y is a single bond or a carbonyl group
  • R 5 is hydrogen, C 1 -C 8 alkyl, C 3 -C 6 cycloalkyl,
  • R 6 is hydrogen or C 1-6 alkyl
  • each R 7 independently is hydrogen, C 1 -C 4 alkyl, or (CH 2 ) 0-4 phenyl; or a pharmaceutically acceptable salt thereof.
  • Preferred compounds included within the scope of formula (VI) are 3-[(2-chlorophenyl)methyl]-2-propylthio-N-butrylhistidine and 3-[(2-chlorophenyl)-methyl]-2-n-butyl-N-butyrylhistidine; or a
  • R 1 is adamanthylmethyl, or phenyl, biphenyl, or naphthyl, with each aryl group being unsubstituted or substituted by one to three substituents selected from Cl, Br, F, I, C 1-6 alkyl, nitro, CO 2 R 8 , tetrazol-5-yl, C 1-6 alkoxy, hydroxy, SC 1-4 alkyl, SO 2 NHR 8 , NHSO 2 R 8 , SO 3 H, CONR 8 R 8 , CN, SO 2 C 1-4 alkyl, or C n F 2n+1 , wherein n is 1-3;
  • R 2 is C 2-10 alkyl, C 3-10 alkenyl, C 3-10 alkynyl,
  • X is a single bond, S, or O
  • R 3 is hydrogen, Cl, Br, F, I, CHO, hydroxymethyl
  • q 0 to 4.
  • n 0 to 2;
  • R 4 is H or C 1-6 alkyl
  • z is 0 to 1;
  • R 5 is C 3-6 alkyl, C 3-6 alkenyl, phenyl-Y-, 2- or 3-thienyl-Y-, 2- or 3-furyl-Y-, 2-, 3-, or 4-pyridyl-Y-, tetrazolyl-Y-, triazolyl-Y-, imidazolyl-Y-, pyrazolyl-Y- thiazolyl-Y-, pyrrolyl-Y-, or oxazolyl-Y-, with each aryl ring being unsubstituted or substituted by
  • Y is a single bond or C 1-6 alkyl which is branched or unbranched;
  • R 6 is CO 2 R 8 , CONR 8 R 8 , or tetrazol-5-yl
  • R 7 is H, CO 2 R 8 , or C 1-6 alkyl
  • each R 8 independently is hydrogen, C 1-6 alkyl, or (CH 3 ) 0-4 phenyl;
  • a preferred compound included within the scope of formula (VII) is 3-[2-n-butyl-1- ⁇ (2-chlorophenyl)-methyl ⁇ -1H-imidazol-5-yl]-2-benzylpropanoic acid or a pharmaceutically acceptable salt thereof.
  • R 1 is adamantylmethyl, or phenyl, biphenyl, or naphthyl, with each aryl group being unsubstituted or substituted by one to three substituents selected from Cl, Br, F, I, C 1 -C 6 alkyl, nitro, CO 2 R 5 , C 1 -C 6 alkoxy, hydroxy, SC 1 -C 6 alkyl, SO 2 C 1 -C 6 alkyl, tetrazol-5-yl, SO 2 NHR 5 , NHSO 2 R 5 , SO 3 H, PO(OR 5 ) 2 , CONR 5 R 5 , CN, NR 5 R 5 ,
  • R 2 is C 2 -C 10 alkyl, C 3 -C 10 alkenyl, (CH 2 ) 0-8 - C 3-6 cycloalkyl, or (CH 2 ) 0-8 phenyl unsubstituted or substituted by one to three substituents selected from
  • NR 5 COC 1 -C 6 -alkyl NR 5 COW, SO 2 W, SO 2 C 1 -C 6 alkyl, or
  • X is a single bond, S, NR 5 , or O;
  • n 0-4;
  • R 3 is hydrogen, Cl, Br, F, I, CHO, hydroxymethyl
  • R 4 is CO 2 R 5 , CONR 5 R 5 , or tetrazol-5-yl
  • Z is hydrogen, Cl, Br, F, I, C 1 -C 6 alkyl
  • Y is a single bond or C 1 -C 6 alkyl, which is straight or branched;
  • W is C m F 2m+1 , wherein m is 1-4,; and each R 5 independently is H or C 1 -C 6 alkyl;
  • a preferred compound included within the scope of formula (IV) is 3-[2-n-butyl-1- ⁇ (2-chlorophenyl)- methyl ⁇ -1H-imidazol-5-yl]benzoic acid or a
  • R 1 is -C(O)NH-CH(Y)-(CH 2 ) n -aryl, -C(O)NH-CH(Y)- (CH 2 ) n -heteroaryl, or phenyl unsubstituted or
  • R 2 is hydrogen, C 2-10 alkyl, C 3-10 alkenyl, C 3-6 - cycloalkyl, C m F 2m+1 , or (CH 2 ) 0-8 phenyl unsubstituted or substituted by one to three substituents selected from C 1-6 alkyl, C 1-6 alkoxy, Cl, Br, F, I, OH, NO 2 , C m F 2m+1 , CO 2 R 4 , or NR 4 R 4 ;
  • Y is CO 2 R 4 or tetrazol-5-yl
  • X is Cl, Br, F, I, C m F 2m+1 , C 1-6 alkyl, C 1-6 alkoxy, OH, O-phenyl, CO 2 R 4 , tetrazol-5-yl, CN, or (CH 2 ) 0- 4 phenyl unsubstituted or substituted by Cl, Br, F, I, C 1-6 alkyl, C 1-6 alkoxy, OH, C m F 2m+1 , CN, CO 2 R 4 , NO 2 , or NR 4 R 4 ;
  • aryl is phenyl, biphenyl, or naphthyl wherein each aryl group is unsubstituted or substituted by C 1-6 alkyl, C 1-6 alkoxy, Cl, Br, F, I , OH, NO 2 , CF 3 , CO 2 R 4 , or NR 4 R 4 ; heteroaryl is 2- or 3-thienyl, 2-, or 3-furanyl, 2-, 3-, or 4- pyridyl, pyrimidyl, imidazolyl, thiazolyl, triazolyl, or tetrazolyl wherein each heteroaryl group is unsubstituted or substituted by C 1-6 alkyl,
  • each n independently is 0-2;
  • each R 4 independently is H or C 1-6 alkyl; or a pharmaceutically acceptable salt thereof.
  • a preferred compound included within the scope of formula (V) is 2-n-butyl-1-(4-carboxyphenyl)methyl-5-chloro-1H-benzimidazole-7-carboxylic acid or a
  • angiotensin II receptor antagonists are also included within the scope of the instant invention. Since it is contemplated that any AII receptor antagonist will possess the novel utility herein described, the list below does not limit the scope of the present invention.
  • AII receptor antagonists are disclosed in the following:
  • a particularly preferred compound in this class of AII receptor antagonists is Sar-Arg-Val-Tyr-Val-His-Pro-ß- Ala-OH which is also referred to as Saralasin.
  • Kisfaludy et al. U.S. Patent No. 4,179,433, issued December 18, 1979.
  • Examples of this class of compounds include aminooxyacetyl-Arg-Val-Tyr-Ile-His-Pro-Leu-OH and D- ⁇ -aminooxypropionyl-Arg-Val-Tyr-Ile-His-Pro-Leu-OH.
  • Kisfaludy et al. U.S. Patent No. 4,209,442, issued June 24, 1980.
  • Examples include hydroxyacetyl-Arg-Val-Tyr-Ile-His-Pro-Leu-OH, hydroxyacetyl-Arg-Val-Tyr-Ile-His-Pro-Ala-OH, and ⁇ -hydroxypropionyl-Arg-Val-Tyr-Ile-His-Pro-Ile-OH.
  • exemplary compounds of this class are SarArg-Val-Tyr-Ile-His-Pro-Lac, Sar-Arg-Val-Tyr-Ile-His-Pro-Lac(OC 2 H 5 ), and Sar-Arg-Val-Tyr-Ile-His-Pro-2-hydroxy-3-methylvaleric acid.
  • Furukawa et al. U.S. Patent No. 4,340,598 issued June 20, 1982.
  • Examples include 1-benzyl-4-chloro-2-phenylimidazole-5-acetamide, 1-benzyl-2-n-butyl-4-chloroimidazole-5-acetamide, and 1-benzyl-2-n-butyl-5-chloroimadazole-4-acetic acid.
  • Furukawa et al. U.S. Patent No. 4,355,040, issued October 19, 1982.
  • Examples include 1-(2-chlorobenzyl)-2-n-butyl-4-chloroimidazole-5-acetic acid and 1-benzyl-4-chloro-2-(4-chloro-3,5-dinitrophenyl)imidazole-5-acetic acid.
  • a preferred compound included within the scope of this class of AII receptor antagonists is 4-chloro-1-(4-hydroxy-3-methylbenzyl)-2-phenylimidazole-5-acetic acid or a pharmaceutically acceptable salt thereof.
  • Preferred compounds included within this class of AII receptor antagonists are 2-n-butyl-4-chloro-1-[(2'-(1H- tetrazol-5-yl)biphenyl-4-yl)methyl]-5- (hydroxymethyl)imidazole and 2-n-butyl-4-chloro-1-[(2'- (carboxybiphenyl-4-yl)methyl]-5-(hydroxymethyl)- imidazole; or a pharmaceutically acceptable salt
  • Preferred compounds included within the scope of this class of AII receptor antagonists are 1-(2-phenylethyl)- 5-phenylacetyl-4,5,6,7-tetrahydro-1H-imidazo[4,5- c]pyridine-6-carboxylic acid and 1-(4-amino-3- methylphenyl)methyl-5-diphenylacety1-4,5,6,7-tetrahydro- 1H-imidazo[4,5-c]pyridine-6-carboxylic acid; or a pharmaceutically acceptable salt thereof.
  • Preferred compounds included in this class of AII receptor antagonists are 5-n-propyl-1-[(2'- carboxybiphenyl-4-yl)methyl]pyrrole-2-carboxylic acid, 3-methoxymethyl-5-n-propyl-4-[(2'-(1H-tetrazol-5-yl)bipheny1-4-yl)methyl]-1,2,4-triazole, and 3-methoxymethyl-5-n-butyl-1-[2'-carboxybiphenyl-4-yl)methyl]pyrazole; or a pharmaceutically acceptable salt thereof.
  • Preferred compounds included within this class of AII receptor antagonists are 2-n-butyl-1- [(2'-carboxybiphenyl-4-yl)methyl]-5-hydroxymethylbenzimidazole and 2-n-butyl-1-[(2'-carboxybiphenyl-4-yl)methyl]-6-hydroxymethylbenzimidazole; or a
  • a preferred compound included within this class of AII receptor antagonists is 5-[4-(3-(N- iso-propylamino)hydroxypropoxy)indole-2-carboxamidomethyl]-2-n-butyl-1-[(2'-carboxybiphenyl-4-yl)methyl]-4-chloroimidazole or a pharmaceutically acceptable salt thereof.
  • Examples include Boc-Phe-Leu amide of (4S)-3-oxo-4-amino-2,2-difluoro-1-isopropyl-mercapto-5-cyclohexylpentane and Boc-Phe-Leu amide of (3R,4S,EZ)-3-hydroxy-4-amino-2-fluoro-1-isopropyl-sulfonyl-5-cyclohexyl-1-pentene; or a pharmaceutically acceptable salt thereof.
  • receptor antagonists is ⁇ -hexyl-4-[(2-carboxy-3-hydroxybenzoyl)amino]-1H-imidazole-1-acetic acid ethyl ester or a pharmaceutically acceptable salt or solvate thereof.
  • a preferred embodiment of this class of AII receptor antagonists includes 2-n-butyl-3-(2'-tetrazol-5- yl ⁇ biphenyl-4-yl)methyl06,7-dihydroimidazo[4,5- e][1,4]diazepine-8(3H)-one or a pharmaceutically
  • a preferred embodiment of this class of AII receptor antagonists includes 4,6-dimethyl-2-ethyl-1-[2- (tetrazol-5-yl)biphenyl-4-yl]methylbenzimidazole or a pharmaceutically acceptable salt thereof.
  • a preferred embodiment of this class of AII receptor antagonists includes 3-n-butyl-4-[4-(2-carboxybenzamido)benyl]-5-(2-methylbenzylthio)-4-1,2,4-triazole or a pharmaceutically acceptable salt thereof.
  • a preferred embodiment of this class of AII receptor antagonists includes 2-n-butyl-1,5-dihydro-4,5-dimethyl-1-[(2'- ⁇ 1H-tetrazol-5-yl ⁇ 1,1-biphenyl ⁇ -4-yl)methyl]- pyrrolo[3,4-d]imidazole or a pharmaceutically acceptable salt thereof.
  • a preferred embodiment of this class of AII receptor antagonists includes 2-n-propyl-4-pentafluoroethyl-1-[2'-(1H-tetrazol-5-yl)biphenyl-4-yl)methyl]imidazole-5-carboxylic acid or a
  • embodiment of this class of AII receptor antagonists includes 2-n-butyl-7-methyl-3-[(2-(1H-tetrazol-5-yl)biphenyl-4-yl]methyl]-3H-imidazo[4,5-b]pyridine or a pharmaceutically acceptable salt thereof.
  • a preferred embodiment of this class of AII receptor antagonists includes 2-methyl-4-(2'-(1H-tetrazol-5-yl)biphenyl-4-yl)methoxy]quinoline or a pharmaceutically acceptable salt thereof.
  • a preferred embodiment of this class of AII receptor antagonists includes 2-ethyl-4-[(2'-(1H-tetrazol-5-yl)biphenyl-4-yl)methoxy-1,5-naphthyridine or a pharmaceutically acceptable salt thereof.
  • a preferred embodiment of this class of AII receptor antagonists includes 4-[(2-n-butyl-1H-benzimidazol-1-yl)methyl-N-phenylsulphonlybenzamide or a pharmaceutically
  • a preferred embodiment of this class of AII receptor antagonists includes 7-methyl-2-n-propyl-3-[(2'(1H-tetrazol-5- yl)biphenyl-4-yl)methyl]-3H-imidazo[4,5-b] or a
  • a preferred embodiment of this class of AII receptor antagonists includes 4'-[(6-n-butanoylamino-2-n-butyl-benzimidazol- 1-yl)methyl]biphenyl-2-carboxylic acid or a
  • An angiotensin II receptor antagonist of the formula (VI) is an angiotensin II receptor antagonist of the formula (VI) :
  • examples 1-4 teach how to make compounds encompassed by the generic Formulae of (II)-(V).
  • AII antagonists are known in the art and may be prepared by known methods or by variations thereof. Certain AII antagonists employed in the invention may exist in isomeric form. This invention includes all such isomers both in pure form and admixture, including racemic mixtures and their pharmaceutically acceptable salts.
  • Angiotensin II antagonist activity is assessed by in vitro methods. In vitro antagonist activity is determined by the ability of the compounds to compete with 125 I-angiotensin II for binding to vascular
  • angiotensin II receptors and by their ability to
  • the preferred AII antagonists are compounds which are capable of inhibiting the action of AII by at least 50% at a concentration of 1mM or less, and especially preferred AII antagonists are compounds which are capable of inhibiting the action of AII by at least 50% at a concentration of 25nM or less when tested by the following standard methods.
  • the radioligand binding assay is a modification of a method previously described in detail (Gunther et al., Circ. Res. 42:278, 1980). A particular fraction from rat mesenteric arteries is incubated in Tris buffer with 80 pM of 125I-angiotensin II with or without angiotensin
  • IC 50 is the concentration of antagonist needed to displace 50% of the total specifically bound angiotensin II.
  • angiotensin II induced vasoconstriction is examined in the rabbit aorta. Ring segments are cut from the rabbit thoracic aorta and suspended in organ baths containing physiological salt solution. The ring segments are mounted over metal supports and attached to force displacement transducers which are connected to a recorder. Cumulative concentration response curves to angiotensin II are performed in the absence of
  • Antagonist dissociation constants are calculated by the dose ratio method using the mean effective concentrations.
  • compositions can be administered orally, parenterally, rectally, topically or
  • the compounds of the instant invention and their pharmaceutically acceptable salts which are active when given orally can be formulated as liquids, for example syrups, suspensions or emulsions, tablets, capsules and lozenges.
  • a liquid formulation will generally consist of a suspension or solution of the compound or
  • a suitable liquid carrier(s) for example, ethanol, glycerine, non-aqueous solvent, for example, polyethylene glycol, oils, or water with a suspending agent, preservative, flavouring or colouring agent.
  • a composition in the form of a tablet can be prepared using any suitable pharmaceutical carrier (s) routinely used for preparing solid formulations.
  • Such carriers include magnesium stearate, starch, lactose, sucrose and cellulose.
  • a composition in the form of a capsule can be prepared using routine encapsulation procedures.
  • pellets containing the active ingredient can be prepared using standard carriers and then filled into a hard gelatin capsule; alternatively, a dispersion or suspension can be prepared using any suitable
  • compositions for example aqueious gums, celluloses, silicates or oils and the dispersion or suspension then filled into a soft gelatin capsule.
  • infusion can be formulated as solutions or suspensions.
  • a composition for parenteral administration will generally consist of a solution or suspension of the active ingredient in a sterile aqueous carrier or parenterally acceptable oil, for example polyethylene glycol, polyvinyl pyrrolidone, lecithin, arachis oil or sesame oil.
  • a sterile aqueous carrier or parenterally acceptable oil for example polyethylene glycol, polyvinyl pyrrolidone, lecithin, arachis oil or sesame oil.
  • the solution can be
  • a typical suppository composition conprises a compound of the instant invention or a pharmaceutically acceptable salt thereof which is active when
  • lubricating agent such as polymeric glycols, gelatins or coca butter or other low melting vegetable or synthetic waxes or fats.
  • a typical transdermal formulation comprises a conventional aqueous or non-aqueous vehicle, for
  • a cream, ointment lotion or paste or in the form of a medicated plaster, patch or membrane.
  • the pharmaceutical compositions adapted include solutions, suspensions, ointments, and solid inserts.
  • Typical pharmaceutically acceptable carriers are, for example, water, mixtures of water and water-miscible solvents such as lower alkanols or vegetable oils, and water soluble ophthalmologically acceptable non-toxic polymers, for example, cellulose derivatives such as methyl cellulose.
  • the pharmaceutical preparation may also contain non-toxic auxiliary substances such as emulsifying, preserving, wetting, and bodying agents, as for example,
  • polyethylene glycols polyethylene glycols
  • antibacterial components such as quaternary ammonium compounds
  • buffering ingredients such as alkali metal chloride; antioxidants such as sodium metabisulfite; and other conventional ingredients such as sorbitan monolaurate.
  • the composition is in unit dose form.
  • Doses of the compounds of the instant invention in a pharmaceutical dosage unit will be an efficacious, nontoxic quantity selected from the range of .01 - 200 mg/kg of active compound, preferably .1 - 100 mg/kg.
  • the selected dose is administered to a human patient in need of treatment of macular degeneration induced by angiotensin II from 1-6 times daily, orally, rectally, topically, by injection, or continuously by infusion.
  • Oral dosage units for human administration preferably contain from 10 to 500 mg of active compound. Lower dosages are used generally for parenteral
  • Oral administration is used when safe, effective, and convenient for the patient.
  • compositions are representative of the AII receptor antagonists included within the scope of the instant invention, but therapeutically effective amounts of other AII antagonists as discussed hereinabove may be substituted.
  • the procedures of Examples 1-4 are illustrative of the synthesis of compounds encompassed by generic formulae (II)-(V). Substitution of starting materials by the appropriate known reagents yields additional compounds within the scope of formulae (II)-(V).
  • Example 1 The procedure of Example 1 is illustrative of the synthesis of compounds encompassed by generic formula
  • This formylated product (17.0 g, 0.071 mol) was dissolved in methyl formate (13.3 mL, 0.216 mol) and added dropwise to a sodium methoxide mixture prepared by adding sodium metal (1.79 g, 0.0778 g-atom) to tetrahydrofuran (325 mL) followed by slow addition of methanol (3.15 mL, 0.0778 mol). The combined mixture was stirred at room temperature for 18 hours, then evaporated to dryness. This crude product was dissolved in 50% aqueous methanol (200 mL), treated with charcoal, filtered and the solution was cooled in ice.
  • the ester was hydrolyzed with aqueous sodium hydroxide solution to give 1-(2-chlorophenyl)methyl-2-thiopropyl-1H-imidazole-5-carboxylic acid; m.p. 158-159.5°C (from ethanol).
  • tetrahydrofuran 100 mL was cooled to -78°C under argon and a solution of n-butyl lithium (30 mL of 2.5 M in hexane) was added. The mixture was stirred at -78°C for 30 minutes and at 0°C for 10 minutes. After being recooled to -78°C, a solution of N-(diphenylmethylene)-glycine ethyl ester (Tetra.
  • Example 2 The procedure of Example 2 is illustrative of the synthesis of compounds encompassed by generic formula (III).
  • Imidazole was converted to the 1-diethoxyorthoamide derivative by the method of Curtis and Brown, J. Org . Chem ., (1980), 45, 20. Imidazole (12.8 g, 0.19 mol) and 118.4 g (0.8 mol) of triethylorthoformate were reacted in the presence of 1 g of p-toluenesulfonic acid to give 20.6 (61%), bp 65-70°C (0.1 mm) of 1-diethoxyorthoamide imidazole.
  • This product (24.0 g, 0.14 mol) was dissolved in dry tetrahydrofuran (250 mL), cooled to -40°C and n-butyl lithium (0.14 mol, 56.4 mL of 2.5 M in hexane) was added at -40°C to -35°C. After 15 minutes n-butyl iodide (31.1 g, 0.169 mol) was added at -40°C, and the reaction was stirred overnight at ambient temperature. The reaction was partitioned between ether and 0.3 N hydrochloric acid, and the organic layer was repeatedly extracted with dilute hydrochloric acid.
  • This crude alcohol (253 g) was treated with acetic anhydride (400 mL) at -15°C and then was allowed to warm to ambient temperature with stirring, and then stirred an additional 19 hours.
  • the acetic anhydride was evaporated at reduced pressure, the residue taken up in methylene chloride, and the organic phase was washed with 5% sodium bicarbonate solution and water.
  • the extract was dried over sodium sulfate and concentrated to give 323 g (83%) of 1-acetyl-4-acetoxymethyl-2-n-butylimidazole.
  • This diacetate was N-alkylated by the following procedure. To a solution of triflic anhydride (120 mL, 0.71 mol) in methylene chloride (200 mL) at -78°C under argon was added a solution of diisopropyl ethylamine (128 mL, 0.73 mol) and 2-chlorobenzyl alcohol (104 g, 0.72 mol) in methylene chloride (350 mL) over a period of 20 minutes.
  • Example 3 The procedure of Example 3 is illustrative of the synthesis of compound encompassed by generic formula (IV).
  • Example 4 The procedures of Example 4 is illustrative of the synthesis of compounds encompassed by generic formula (V).
  • Crystallization was achieved by dissolving the solid in acetic acid (150 mL) and after concentration to a half of the volume, crystals separated (16.72 g); mp 225-229°C. An additional crop of 7.52 g was obtained to give a total yield of 24.24 g (41%).
  • An oral dosage form for administering orally active Formula (I) compounds is produced by screening, mixing and filling into hard gelatin capsules the ingredients in proportions, for example, as shown below.
  • sucrose calcium sulfate dihydrate and orally active Formula (I) compounds are mixed. and granulated with a 10% gelatin solution.
  • the wet granules are screened, dried, mixed with the starch, talc and stearic acid, screened and compressed into a tablet.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

L'invention se rapporte à l'utilisation d'un agent, antagoniste du récepteur de l'angiotensine II, dans le fabrication d'un médicament destiné au traitement de la dégénérescence maculaire.
PCT/GB1991/002217 1990-12-14 1991-12-12 Utilisation d'agents antagonistes du recepteur de l'angiotensine ii dans le traitement de la degenerescence maculaire WO1992010179A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4501726A JPH06503333A (ja) 1990-12-14 1991-12-12 黄斑変性の治療におけるアンジオテンシン２受容体拮抗剤の使用

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9027212.1 1990-12-14
GB909027212A GB9027212D0 (en) 1990-12-14 1990-12-14 Medicaments

Publications (1)

Publication Number Publication Date
WO1992010179A1 true WO1992010179A1 (fr) 1992-06-25

Family

ID=10687046

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1991/002217 WO1992010179A1 (fr) 1990-12-14 1991-12-12 Utilisation d'agents antagonistes du recepteur de l'angiotensine ii dans le traitement de la degenerescence maculaire

Country Status (5)

Country Link
EP (1) EP0561905A1 (fr)
JP (1) JPH06503333A (fr)
AU (1) AU9065291A (fr)
GB (1) GB9027212D0 (fr)
WO (1) WO1992010179A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536262A1 (fr) * 1990-06-28 1993-04-14 Smithkline Beecham Corporation Histidines substituees
EP0641203A4 (fr) * 1991-08-14 1994-06-09 Smithkline Beecham Corp Acides amidazolyle-alcenoiques.
US6025380A (en) * 1990-12-14 2000-02-15 Smithkline Beecham Plc Medicament
WO2000010605A3 (fr) * 1998-08-20 2000-06-02 Senju Pharma Co Prophylaxie ou remedes pour la perturbation circulatoire de l'oeil
US6552033B1 (en) 2000-05-16 2003-04-22 The Procter & Gamble Co. Imidazo-containing heterocyclic compounds, their compositions and uses
WO2011069038A2 (fr) 2009-12-03 2011-06-09 Synergy Pharmaceuticals, Inc. Agonistes de la guanylate cyclase utiles dans le traitement de l'hypercholestérolémie, de l'athérosclérose, d'une coronaropathie, des calculs biliaires, de l'obésité et d'autres maladies cardiovasculaires
WO2013138352A1 (fr) 2012-03-15 2013-09-19 Synergy Pharmaceuticals Inc. Formulations d'agonistes de la guanylate cyclase c et procédés d'utilisation
WO2014151200A2 (fr) 2013-03-15 2014-09-25 Synergy Pharmaceuticals Inc. Compositions utiles pour le traitement de troubles gastro-intestinaux
WO2014151206A1 (fr) 2013-03-15 2014-09-25 Synergy Pharmaceuticals Inc. Agonistes de la guanylate cyclase et leurs utilisations
EP2810951A2 (fr) 2008-06-04 2014-12-10 Synergy Pharmaceuticals Inc. Agonistes de guanylate cyclase utile dans le traitement de troubles gastro-intestinaux, d'une inflammation, d'un cancer et d'autres troubles
WO2014197720A2 (fr) 2013-06-05 2014-12-11 Synergy Pharmaceuticals, Inc. Agonistes ultra-purs de guanylate cyclase c, leur procédé de production et d'utilisation
EP2998314A1 (fr) 2007-06-04 2016-03-23 Synergy Pharmaceuticals Inc. Agonistes de guanylase cyclase utiles pour le traitement de troubles gastro-intestinaux, d'inflammation, de cancer et d'autres troubles
EP3241839A1 (fr) 2008-07-16 2017-11-08 Synergy Pharmaceuticals Inc. Agonistes de guanylate cyclase utiles pour le traitement de troubles gastro-intestinaux, inflammatoires, cancéreux et autres

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4656188A (en) 1985-10-09 1987-04-07 Merck & Co., Inc. Ace inhibitors in macular degeneration
EP0323841A2 (fr) * 1988-01-07 1989-07-12 E.I. Du Pont De Nemours And Company Antagonistes d'angiotensine II du type pyrrole, pyrazole et triazole substitués
EP0403158A2 (fr) * 1989-06-14 1990-12-19 Smithkline Beecham Corporation Acides imidazolyl-alcénoiques
EP0403159A2 (fr) * 1989-06-14 1990-12-19 Smithkline Beecham Corporation Acides imidazoalcénoiques
WO1991014367A1 (fr) * 1990-03-20 1991-10-03 E.I. Du Pont De Nemours And Company Traitement de desordres du systeme nerveux central avec des antagonistes recepteurs de imidazole angiotensine ii
WO1991016313A1 (fr) 1990-04-13 1991-10-31 Smithkline Beecham Corporation Benzimidazoles substitues

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4656188A (en) 1985-10-09 1987-04-07 Merck & Co., Inc. Ace inhibitors in macular degeneration
EP0323841A2 (fr) * 1988-01-07 1989-07-12 E.I. Du Pont De Nemours And Company Antagonistes d'angiotensine II du type pyrrole, pyrazole et triazole substitués
EP0403158A2 (fr) * 1989-06-14 1990-12-19 Smithkline Beecham Corporation Acides imidazolyl-alcénoiques
EP0403159A2 (fr) * 1989-06-14 1990-12-19 Smithkline Beecham Corporation Acides imidazoalcénoiques
WO1991014367A1 (fr) * 1990-03-20 1991-10-03 E.I. Du Pont De Nemours And Company Traitement de desordres du systeme nerveux central avec des antagonistes recepteurs de imidazole angiotensine ii
WO1991016313A1 (fr) 1990-04-13 1991-10-31 Smithkline Beecham Corporation Benzimidazoles substitues

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536262A4 (en) * 1990-06-28 1996-08-14 Smithkline Beecham Corp Substituted histidines
EP0536262A1 (fr) * 1990-06-28 1993-04-14 Smithkline Beecham Corporation Histidines substituees
US6025380A (en) * 1990-12-14 2000-02-15 Smithkline Beecham Plc Medicament
EP0641203A4 (fr) * 1991-08-14 1994-06-09 Smithkline Beecham Corp Acides amidazolyle-alcenoiques.
EP0641203A1 (fr) * 1991-08-14 1995-03-08 Smithkline Beecham Corporation Acides amidazolyle-alcenoiques
WO2000010605A3 (fr) * 1998-08-20 2000-06-02 Senju Pharma Co Prophylaxie ou remedes pour la perturbation circulatoire de l'oeil
US6552033B1 (en) 2000-05-16 2003-04-22 The Procter & Gamble Co. Imidazo-containing heterocyclic compounds, their compositions and uses
EP2998314A1 (fr) 2007-06-04 2016-03-23 Synergy Pharmaceuticals Inc. Agonistes de guanylase cyclase utiles pour le traitement de troubles gastro-intestinaux, d'inflammation, de cancer et d'autres troubles
EP2810951A2 (fr) 2008-06-04 2014-12-10 Synergy Pharmaceuticals Inc. Agonistes de guanylate cyclase utile dans le traitement de troubles gastro-intestinaux, d'une inflammation, d'un cancer et d'autres troubles
EP3241839A1 (fr) 2008-07-16 2017-11-08 Synergy Pharmaceuticals Inc. Agonistes de guanylate cyclase utiles pour le traitement de troubles gastro-intestinaux, inflammatoires, cancéreux et autres
EP2923706A1 (fr) 2009-12-03 2015-09-30 Synergy Pharmaceuticals Inc. Agonistes de guanylate cyclase utiles pour le traitement de l'hypercholestérolémie
WO2011069038A2 (fr) 2009-12-03 2011-06-09 Synergy Pharmaceuticals, Inc. Agonistes de la guanylate cyclase utiles dans le traitement de l'hypercholestérolémie, de l'athérosclérose, d'une coronaropathie, des calculs biliaires, de l'obésité et d'autres maladies cardiovasculaires
WO2013138352A1 (fr) 2012-03-15 2013-09-19 Synergy Pharmaceuticals Inc. Formulations d'agonistes de la guanylate cyclase c et procédés d'utilisation
EP3708179A1 (fr) 2012-03-15 2020-09-16 Bausch Health Ireland Limited Formulations d'agonistes de guanylate cyclase c et leurs procédés d'utilisation
EP4309673A2 (fr) 2012-03-15 2024-01-24 Bausch Health Ireland Limited Formulations d'agonistes de guanylate cyclase c et leurs procédés d'utilisation
WO2014151206A1 (fr) 2013-03-15 2014-09-25 Synergy Pharmaceuticals Inc. Agonistes de la guanylate cyclase et leurs utilisations
WO2014151200A2 (fr) 2013-03-15 2014-09-25 Synergy Pharmaceuticals Inc. Compositions utiles pour le traitement de troubles gastro-intestinaux
WO2014197720A2 (fr) 2013-06-05 2014-12-11 Synergy Pharmaceuticals, Inc. Agonistes ultra-purs de guanylate cyclase c, leur procédé de production et d'utilisation
EP4424697A2 (fr) 2013-06-05 2024-09-04 Bausch Health Ireland Limited Agonistes ultra-purs de guanylate cyclase c, leur procédé de fabrication et d'utilisation

Also Published As

Publication number Publication date
EP0561905A1 (fr) 1993-09-29
GB9027212D0 (en) 1991-02-06
AU9065291A (en) 1992-07-08
JPH06503333A (ja) 1994-04-14

Similar Documents

Publication Publication Date Title
EP0561939B1 (fr) Utilisation d'agents antagonistes du recepteur de l'angiotensine ii dans le traitement de la nephropathie diabetique
WO1992010183A1 (fr) Utilisation d'agents antagonistes du recepteur de l'angiotensine ii dans le traitement de la retinopathie diabetique
US5387601A (en) Medicament
WO1992010179A1 (fr) Utilisation d'agents antagonistes du recepteur de l'angiotensine ii dans le traitement de la degenerescence maculaire
WO1992010180A1 (fr) Utilisation d'antagoniste de l'angiotensine ii dans le traitement des infarctus
WO1992010188A1 (fr) Utilisation d'antagonistes du recepteur de l'angiotensine ii dans le traitement d'accidents hemorragiques
US20020132840A1 (en) Medicament
EP0561876B1 (fr) Utilisation d'agents antagonistes du recepteur de l'angiotensine ii dans le traitement des atheromes
WO1992010186A1 (fr) Utilisation d'agents antagonistes du recepteur de l'angiotensine ii dans la preparation d'un medicament ameliorant les fonctions cognitives
WO1992010181A1 (fr) Utilisation d'agents antagonistes de l'angiotensine ii dans le traitement de l'hypertrophie ventriculaire gauche
US6028091A (en) Medicament
US6034114A (en) Medicament
US6025380A (en) Medicament
US20010018448A1 (en) Medicament
US20020006949A1 (en) Medicament
US20010016594A1 (en) Medicament
US20030096851A1 (en) Medicament
US20020068759A1 (en) Medicament
US20010051615A1 (en) Medicament
US20030166700A1 (en) Medicament
US20020128300A1 (en) Medicament
JP3512793B6 (ja) 糖尿病性腎症の治療におけるアンジオテンシン▲ｉｉ▼受容体拮抗剤の使用

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU CA JP KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LU MC NL SE

WWE Wipo information: entry into national phase

Ref document number: 1992900761

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1992900761

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: CA

WWW Wipo information: withdrawn in national office

Ref document number: 1992900761

Country of ref document: EP

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载