WO1998018795A1 - Verfahren zur herstellung von naphthyridinverbindungen und neue zwischenprodukte - Google Patents
Verfahren zur herstellung von naphthyridinverbindungen und neue zwischenprodukte Download PDFInfo
- Publication number
- WO1998018795A1 WO1998018795A1 PCT/EP1997/005743 EP9705743W WO9818795A1 WO 1998018795 A1 WO1998018795 A1 WO 1998018795A1 EP 9705743 W EP9705743 W EP 9705743W WO 9818795 A1 WO9818795 A1 WO 9818795A1
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- Prior art keywords
- formulas
- chlorine
- alkyl
- compound
- fluorine
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 150000005054 naphthyridines Chemical class 0.000 title claims abstract description 18
- 239000013067 intermediate product Substances 0.000 title 1
- 150000001875 compounds Chemical class 0.000 claims abstract description 50
- 239000000460 chlorine Substances 0.000 claims abstract description 26
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 26
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 23
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 21
- 239000011737 fluorine Substances 0.000 claims abstract description 21
- 239000002253 acid Substances 0.000 claims abstract description 13
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 8
- 239000002516 radical scavenger Substances 0.000 claims abstract description 8
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims abstract description 7
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052794 bromium Inorganic materials 0.000 claims abstract description 7
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N N-phenyl amine Natural products NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 5
- 239000001257 hydrogen Substances 0.000 claims abstract description 5
- 125000002490 anilino group Chemical class [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims abstract 3
- 241000251730 Chondrichthyes Species 0.000 claims description 24
- 238000002360 preparation method Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 11
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 10
- 239000011541 reaction mixture Substances 0.000 claims description 10
- 239000002585 base Substances 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 229960000583 acetic acid Drugs 0.000 claims description 5
- -1 aminoacrylic acid ester Chemical class 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 239000012362 glacial acetic acid Substances 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- 238000007363 ring formation reaction Methods 0.000 claims description 4
- 125000001424 substituent group Chemical group 0.000 claims description 4
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical class CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 claims description 3
- 125000003545 alkoxy group Chemical group 0.000 claims description 3
- 239000000010 aprotic solvent Substances 0.000 claims description 3
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 3
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 3
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 3
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 3
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 2
- 229910001515 alkali metal fluoride Inorganic materials 0.000 claims description 2
- 239000011260 aqueous acid Substances 0.000 claims description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 2
- 238000004821 distillation Methods 0.000 claims description 2
- 150000002168 ethanoic acid esters Chemical class 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 abstract 3
- SMLLRFZDJUGNIX-UHFFFAOYSA-N 3-aminoprop-2-enoyl pyridine-2-carboxylate Chemical compound NC=CC(=O)OC(=O)C1=CC=CC=N1 SMLLRFZDJUGNIX-UHFFFAOYSA-N 0.000 abstract 3
- TWBYWOBDOCUKOW-UHFFFAOYSA-N isonicotinic acid Chemical compound OC(=O)C1=CC=NC=C1 TWBYWOBDOCUKOW-UHFFFAOYSA-N 0.000 abstract 2
- SIOXPEMLGUPBBT-UHFFFAOYSA-N picolinic acid Chemical compound OC(=O)C1=CC=CC=N1 SIOXPEMLGUPBBT-UHFFFAOYSA-N 0.000 abstract 2
- YTLYLLTVENPWFT-UPHRSURJSA-N (Z)-3-aminoacrylic acid Chemical compound N\C=C/C(O)=O YTLYLLTVENPWFT-UPHRSURJSA-N 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical class OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 abstract 1
- 125000003277 amino group Chemical group 0.000 abstract 1
- 229940081066 picolinic acid Drugs 0.000 abstract 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 15
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 15
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical group CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 239000000543 intermediate Substances 0.000 description 5
- 239000012074 organic phase Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 125000004215 2,4-difluorophenyl group Chemical group [H]C1=C([H])C(*)=C(F)C([H])=C1F 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 238000007127 saponification reaction Methods 0.000 description 3
- 0 CC(C1)*(C)=*C2=C1CC(*)=C*2* Chemical compound CC(C1)*(C)=*C2=C1CC(*)=C*2* 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000001448 anilines Chemical class 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 150000007529 inorganic bases Chemical class 0.000 description 2
- 150000007530 organic bases Chemical class 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 2
- ATBIAJXSKNPHEI-UHFFFAOYSA-N pyridine-3-carbonyl chloride Chemical class ClC(=O)C1=CC=CN=C1 ATBIAJXSKNPHEI-UHFFFAOYSA-N 0.000 description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 description 1
- CEPCPXLLFXPZGW-UHFFFAOYSA-N 2,4-difluoroaniline Chemical compound NC1=CC=C(F)C=C1F CEPCPXLLFXPZGW-UHFFFAOYSA-N 0.000 description 1
- AATVXELAYCLVTJ-UHFFFAOYSA-N 2,6-dichloro-5-fluoropyridine-3-carbonyl chloride Chemical compound FC1=CC(C(Cl)=O)=C(Cl)N=C1Cl AATVXELAYCLVTJ-UHFFFAOYSA-N 0.000 description 1
- XSSOXUDGYGOJLQ-UHFFFAOYSA-N 2-anilino-4-oxo-4-pyridin-3-ylbut-2-enoic acid Chemical class C=1C=CN=CC=1C(=O)C=C(C(=O)O)NC1=CC=CC=C1 XSSOXUDGYGOJLQ-UHFFFAOYSA-N 0.000 description 1
- 125000004198 2-fluorophenyl group Chemical group [H]C1=C([H])C(F)=C(*)C([H])=C1[H] 0.000 description 1
- 125000001255 4-fluorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1F 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- IYXGSMUGOJNHAZ-UHFFFAOYSA-N Ethyl malonate Chemical compound CCOC(=O)CC(=O)OCC IYXGSMUGOJNHAZ-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 125000001246 bromo group Chemical group Br* 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000007942 carboxylates Chemical group 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 230000000911 decarboxylating effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010931 ester hydrolysis Methods 0.000 description 1
- JLSXYCZRMYCIMY-UHFFFAOYSA-N ethyl 7-chloro-1-(2,4-difluorophenyl)-6-fluoro-4-oxo-1,8-naphthyridine-3-carboxylate Chemical compound C12=NC(Cl)=C(F)C=C2C(=O)C(C(=O)OCC)=CN1C1=CC=C(F)C=C1F JLSXYCZRMYCIMY-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 229940093915 gynecological organic acid Drugs 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000002905 orthoesters Chemical class 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000003444 phase transfer catalyst Substances 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- 239000011698 potassium fluoride Substances 0.000 description 1
- 235000003270 potassium fluoride Nutrition 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 238000006798 ring closing metathesis reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
- C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D211/80—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
- C07D211/84—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/26—Radicals substituted by halogen atoms or nitro radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/61—Halogen atoms or nitro radicals
Definitions
- the present invention relates first of all to an advantageous process for the preparation of the naphthyridine compounds characterized by formulas (Ia) to (Ic) below and to new intermediates which are key compounds for this process.
- Naphthyridine compounds of the formulas (Ia) to (Ic) are valuable intermediates for the preparation of active compounds, in particular highly effective bactericides (see, for example, US Pat. No. 5,164,402, US Pat. No. 5,298,629 and EP-OS 413 455).
- naphthyridine compounds of the formula (Ia) by reacting a halogenated nicotinoyl chloride with a malonic ester, then decarboxylating one of the two carboxylate groups, then converting the methylene group between the two carbonyl groups into an using an ortho-ester
- R represents hydrogen or C r C 4 alkyl
- n 1, 2 or 3, found
- R 1 represents C r C 4 alkyl
- R and R independently of one another represent C j -C 6 alkyl, where the alkyl chain can in each case optionally be interrupted by O, S or NH,
- R ', R 1 and R 2 have the meaning given for formula (III),
- Ar has the meaning given in the formulas (la) to (Ic)
- Ar, n and shark are those given in formulas (la) to (Ic),
- R and to the extent that R is C 1 -C 4 -alkyl can each be straight-chain or branched and can be, for example, methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl or t-butyl.
- R preferably represents hydrogen, methyl or ethyl.
- R preferably represents methyl or ethyl.
- the substituents can be, for example
- Ar is preferably phenyl, 2,4-difluorophenyl, 2-fluorophenyl or 4-fluorophenyl.
- Shark is preferably fluorine or chlorine. When there are two sharks, one is preferably fluorine and the other is chlorine. When there are three sharks, 1 to 2 are preferably fluorine and the rest are chlorine. It is further preferred that a fluorine substituent is located on the carbon atom in the meta position to the carbonyl group (this is the 6 position in formula (Ia) and the corresponding position in the other formulas).
- Hai ' is preferably chlorine, n is preferably 2.
- R 1 and R 2 are preferably the same and each represent methyl or ethyl, in particular ethyl.
- the reaction of compounds of the formulas (Ha) to (IIc) with a compound of the formula (III) can be carried out, for example, by initially introducing the compound of the formula (III), a solvent and a base and a compound of the formulas (Ha ) to (IIc).
- the reactants can be used in any ratio to one another.
- the molar ratio of the compound of the formulas (Ha) to (IIc) to the compound of the formula (III) is preferably 0.8 to 1.2: 1, in particular 0.9 to 1.1: 1.
- inorganic and organic bases can be used as bases.
- bases which are sparingly soluble in the reaction mixture for example inorganic bases
- a phase transfer catalyst for example inorganic bases
- Organic bases for example amines
- Tertiary amines which contain, for example, three identical or different C 1 -C 6 -alkyl groups such as triethylamine are particularly preferred.
- the amount of base should be at least the stoichiometrically required amount, a small excess is preferred, for example up to 120% by weight of the stoichiometrically required amount.
- chlorinated hydrocarbons and aromatics are suitable as solvents.
- reaction temperature can be, for example, in the range from -10 to + 80 ° C. In general, it is advantageous to stir at the reaction temperature for a while after the reactants have been combined.
- the overall process for the preparation of naphthyridine compounds of the formulas (Ic) to Ic) can be carried out in the reactor in which the fully reacted reaction mixture of reacting a compound of the formulas (Ila) to (IIc) with a compound of the formula (III) is present. Isolation of the compound of the formulas (IVa) to (IVc) produced is not necessary for this.
- reaction of a compound of the formulas (IVa) to (IVc) with a compound of the formula (V) to a compound of the formulas (Via) to (VIc) can be carried out e.g. carry out such that a compound of the formulas (IVa) to (IVc), preferably in the form of the fully reacted reaction mixture obtained in its preparation, is acidified and at temperatures of, for example, below
- (V) preferably 0.8 to 1.2: 1, in particular 0.9 to 1.1: 1.
- inorganic and organic acids can be used for acidification.
- the amount of acid can be chosen, for example, so that there is a slight excess with respect to the base used. The amount of acid can thus be, for example, up to 125 equivalent%, based on the base used.
- the laundry can e.g. at temperatures from room temperature to 95 ° C.
- the dipolar aprotic solvent can be, for example, dimethylformamide, dimethyl sulfoxide, tetramethylene sulfone or N-methylpyrrolidone.
- Suitable acid scavengers are alkali metal salts such as alkali metal fluorides, carbonates, bicarbonates and hydrides. The following may be mentioned as individual examples: sodium fluoride, sodium hydride, sodium carbonate, sodium bicarbonate, potassium fluoride and potassium bicarbonate. It is advantageous to use the acid scavenger in an excess, for example in an excess of 10 to 50% by weight, based on the theoretical required amount. It is also advantageous to carry out the cyclization under as anhydrous conditions as possible.
- an aqueous acid can be added until a pH e.g. in the
- naphthyridine compounds of the formulas (la) to (Ic) in purities of over 99%, often over 99.8%, and in yields (based on halogenated acid chloride of the formulas (I ⁇ a) to (IIc)) of over 80% d. Th. Received.
- the process according to the invention is advantageous not only because of these good results in terms of yield and purity, but also because it is particularly simple, requires only two reaction vessels and delivers highly pure products without the isolation of intermediate stages. In view of the prior art described at the outset, this is extremely surprising.
- n 1, 2 or 3
- Ar represents optionally substituted phenyl.
- Example 2 The procedure was first as in Example 2. The washed toluene solution obtained there was metered in over 3 hours onto a template heated to 60 ° C. from 250 ml of N-methylpyrrolidone and 28 g of anhydrous potassium carbonate. At the same time, toluene was continuously distilled off in vacuo.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Pyridine Compounds (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU50508/98A AU5050898A (en) | 1996-10-30 | 1997-10-17 | Method or producing naphthyridine compounds and novel intermediate products |
PL97332941A PL332941A1 (en) | 1996-10-30 | 1997-10-17 | Method of obtaining naphtyridinic compounds and novel intermediate compounds |
CA002269984A CA2269984A1 (en) | 1996-10-30 | 1997-10-17 | Method or producing naphthyridine compounds and novel intermediate products |
CZ991549A CZ154999A3 (cs) | 1996-10-30 | 1997-10-17 | Způsob výroby nafthyridinových sloučenin a nové meziprodukty pro tuto výrobu |
IL12959797A IL129597A0 (en) | 1996-10-30 | 1997-10-17 | Process for the preparation of naphthyridine compounds and novel intermediates |
JP10519989A JP2001502715A (ja) | 1996-10-30 | 1997-10-17 | ナフチリジン化合物および新規中間体の製造体 |
EP97913157A EP0935600A1 (de) | 1996-10-30 | 1997-10-17 | Verfahren zur herstellung von naphthyridinverbindungen und neue zwischenprodukte |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19643826.8 | 1996-10-30 | ||
DE1996143826 DE19643826A1 (de) | 1996-10-30 | 1996-10-30 | Verfahren zur Herstellung von Naphthyridinverbindungen und neue Zwischenprodukte |
DE19648214A DE19648214A1 (de) | 1996-11-21 | 1996-11-21 | Verfahren zur Herstellung von Naphthyridinverbindungen und neue Zwischenprodukte |
DE19648214.3 | 1996-11-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998018795A1 true WO1998018795A1 (de) | 1998-05-07 |
Family
ID=26030644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/005743 WO1998018795A1 (de) | 1996-10-30 | 1997-10-17 | Verfahren zur herstellung von naphthyridinverbindungen und neue zwischenprodukte |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0935600A1 (de) |
JP (1) | JP2001502715A (de) |
KR (1) | KR20000052892A (de) |
CN (1) | CN1235605A (de) |
AU (1) | AU5050898A (de) |
CA (1) | CA2269984A1 (de) |
CZ (1) | CZ154999A3 (de) |
IL (1) | IL129597A0 (de) |
PL (1) | PL332941A1 (de) |
WO (1) | WO1998018795A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6541480B2 (en) | 1997-08-06 | 2003-04-01 | Suntory Limited | 1-aryl-1,8-naphthylidin-4-one derivative as type IV phosphodiesterase inhibitor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0132845A2 (de) * | 1983-07-27 | 1985-02-13 | Dainippon Pharmaceutical Co., Ltd. | 1,8-Naphthyridinderivate und Verfahren zu ihrer Herstellung |
FR2614620A1 (fr) * | 1984-04-26 | 1988-11-04 | Toyama Chemical Co Ltd | Derives de la 1,4-dihydro-4-oxonaphtyridine et leurs sels, procede pour leur production et agents anti-bacteriens les contenant |
DE4425647A1 (de) * | 1994-07-20 | 1996-01-25 | Bayer Ag | Heterocyclyl-1-phenyl substituierte Chinoloncarbonsäuren |
-
1997
- 1997-10-17 CZ CZ991549A patent/CZ154999A3/cs unknown
- 1997-10-17 CN CN97199280A patent/CN1235605A/zh active Pending
- 1997-10-17 AU AU50508/98A patent/AU5050898A/en not_active Abandoned
- 1997-10-17 KR KR1019990703756A patent/KR20000052892A/ko not_active Withdrawn
- 1997-10-17 PL PL97332941A patent/PL332941A1/xx unknown
- 1997-10-17 WO PCT/EP1997/005743 patent/WO1998018795A1/de not_active Application Discontinuation
- 1997-10-17 IL IL12959797A patent/IL129597A0/xx unknown
- 1997-10-17 JP JP10519989A patent/JP2001502715A/ja active Pending
- 1997-10-17 CA CA002269984A patent/CA2269984A1/en not_active Abandoned
- 1997-10-17 EP EP97913157A patent/EP0935600A1/de not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0132845A2 (de) * | 1983-07-27 | 1985-02-13 | Dainippon Pharmaceutical Co., Ltd. | 1,8-Naphthyridinderivate und Verfahren zu ihrer Herstellung |
FR2614620A1 (fr) * | 1984-04-26 | 1988-11-04 | Toyama Chemical Co Ltd | Derives de la 1,4-dihydro-4-oxonaphtyridine et leurs sels, procede pour leur production et agents anti-bacteriens les contenant |
DE4425647A1 (de) * | 1994-07-20 | 1996-01-25 | Bayer Ag | Heterocyclyl-1-phenyl substituierte Chinoloncarbonsäuren |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6541480B2 (en) | 1997-08-06 | 2003-04-01 | Suntory Limited | 1-aryl-1,8-naphthylidin-4-one derivative as type IV phosphodiesterase inhibitor |
Also Published As
Publication number | Publication date |
---|---|
KR20000052892A (ko) | 2000-08-25 |
CA2269984A1 (en) | 1998-05-07 |
AU5050898A (en) | 1998-05-22 |
PL332941A1 (en) | 1999-10-25 |
JP2001502715A (ja) | 2001-02-27 |
EP0935600A1 (de) | 1999-08-18 |
CZ154999A3 (cs) | 1999-08-11 |
CN1235605A (zh) | 1999-11-17 |
IL129597A0 (en) | 2000-02-29 |
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