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WO2002002119A1 - Inhibiteurs de la synthase d'acides gras - Google Patents

Inhibiteurs de la synthase d'acides gras Download PDF

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Publication number
WO2002002119A1
WO2002002119A1 PCT/US2001/020926 US0120926W WO0202119A1 WO 2002002119 A1 WO2002002119 A1 WO 2002002119A1 US 0120926 W US0120926 W US 0120926W WO 0202119 A1 WO0202119 A1 WO 0202119A1
Authority
WO
WIPO (PCT)
Prior art keywords
chloro
indan
dichloro
benzyloxy
dioxol
Prior art date
Application number
PCT/US2001/020926
Other languages
English (en)
Inventor
Jia-Ning Xiang
Siegfried B. Christensen, Iv
Daniel J. Mercer
Original Assignee
Smithkline Beecham Corporation
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 Corporation filed Critical Smithkline Beecham Corporation
Priority to AU2001271718A priority Critical patent/AU2001271718A1/en
Publication of WO2002002119A1 publication Critical patent/WO2002002119A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
    • C07D317/44—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D317/46—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems condensed with one six-membered ring
    • C07D317/48—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring
    • C07D317/62—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring 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 atoms of the carbocyclic ring

Definitions

  • This invention relates to the use of compounds as inhibitors of the fatty acid synthase FabH. BACKGROUND OF THE INVENTION
  • the pathway for the biosynthesis of saturated fatty acids is very similar in prokaryotes and eukaryotes.
  • Vertebrates and yeasts possess type I fatty acid synthases (FASs) in which all of the enzymatic activities are encoded on one or two polypeptide chains, respectively.
  • FOSs type I fatty acid synthases
  • ACP acyl carrier protein
  • each of the reactions are catalyzed by distinct monofunctional enzymes and the ACP is a discrete protein.
  • Mycobacteria are unique in that they possess both type I and II FASs; the former is involved in basic fatty acid biosynthesis whereas the latter is involved in synthesis of complex cell envelope lipids such as my colic acids. There therefore appears to be considerable potential for selective inhibition of the bacterial systems by broad-spectrum antibacterial agents (Jackowski, S. 1992. In Emerging Targets in Antibacterial and Antifungal Chemotherapy. Ed. J. Sutcliffe & N. Georgopapadakou. Chapman & Hall, New York; Jackowski, S. et al. (1989). J. Biol. Chem. 264, 7624-7629.)
  • the first step in the biosynthetic cycle is the condensation of malonyl-ACP with acetyl-CoA by FabH.
  • malonyl-ACP is condensed with the growing-chain acyl- ACP (FabB and FabF, synthases I and LI respectively).
  • the second step in the elongation cycle is ketoester reduction by NADPH-dependent ⁇ - ketoacyl-ACP reductase (FabG).
  • Fab H is therefore a major biosynthetic enzyme which is also a key regulatory point in the overall synthetic pathway (Heath, R.J. and Rock, CO. 1996. J.Biol.Chem. 271, 1833-1836; Heath, R.J. and Rock, CO. 1996. J.Biol.Chem. 271, 10996- 11000).
  • the antibiotic thiolactomycin has broad-spectrum antibacterial activity both in vivo and in vitro and has been shown to specifically inhibit all three condensing enzymes. It is non-toxic and does not inhibit mammalian FASs (Hayashi, T. et al.,1984. J. Antibiotics 37, 1456-1461; Miyakawa, S. et al, 1982. J. Antibiotics 35, 411-419; Nawata, Y et al., 1989. Acta Cryst. C45, 978-979; Noto, T. et al., 1982. J. Antibiotics 35, 401-410; Oishi, H. et al., 1982. J. Antibiotics 35, 391-396.
  • cerulenin is a potent inhibitor of FabB & F and is bactericidal but is toxic to eukaryotes because it competes for the fatty-acyl binding site common to both FAS types (DAgnolo, G. et al.,1973. Biochim. Biophys. Acta. 326, 155-166). Extensive work with these inhibitors has proved that these enzymes are essential for viability. Little work has been carried out in Gram-positive bacteria. There is an unmet need for developing new classes of antibiotic compounds that are not subject to existing resistance mechanisms. No marketed antibiotics are targeted against fatty acid biosynthesis, therefore it is unlikely that novel antibiotics of this type would be rendered inactive by known antibiotic resistance mechanisms. Moreover, this is a potentially broad-spectrum target. Therefore, FabH inhibitors would serve to meet this unmet need.
  • This invention comprises cinnamate derivatives and pharmaceutical compositions containing these compounds and their use as FabH inhibitors that are useful as antibiotics for the treatment of Gram positive and Gram negative bacterial infections.
  • This invention further constitutes a method for treatment of a Gram negative or Gram positive bacterial infection in an animal, including humans, which comprises administering to an animal in need thereof, an effective amount of a compound of this invention.
  • R is OH or R"SO 2 NH
  • Ar is selected from the group consisting of phenyl, pyridinyl, pyrimidinyl, and thiophenyl, all of which can be optionally substituted with 1 to 3 substituents selected from the group consisting of alkyl, C 1.4 alkoxy, Cl, Br, F, methylenedioxy, CN, and CO2R" ';
  • R' is selected from one or more substituents selected from the group consisting of
  • R" is alkyl, or Ar, optionally substituted with 1-3 substituents independently selected from the group consisting of : alkyl, C 1.4 alkoxy, Cl, Br, F, methylenedioxy, CN, and CO 2 R'"; and
  • R"' represents H or alkyl.
  • alkyl means both straight and branched chains of 1 to 6 carbon atoms, unless the chain length is otherwise limited, including, but not limited to, methyl, ethyl, n-propyl, w ⁇ -propyl, n-butyl, sec-butyl, iso-butyl, tert-butyl, n- pentyl and the like.
  • the alkyl may carry substituents such as hydroxy, carboxy, alkoxy, and the like.
  • preferred aryl substituents include halo, including chloro, fluoro, bromo and iodo, in any combination; C ⁇ _ ⁇ galkyl, Cj.ioalkoxy, aryloxy, or heteroaryloxy.
  • the compounds of this invention may contain one or more asymmetric carbon atoms and may exist in racemic and optically active forms. All of these compounds and diastereomers are contemplated to be within the scope of the present invention. Some of the compounds of this invention may be crystallised or recrystallised from solvents such as organic solvents. In such cases solvates may be formed.
  • This invention includes within its scope stoichiometric solvates including hydrates as well as compounds containing variable amounts of water that may be produced by processes such as lyophilisation.
  • the antibiotic compounds of the invention are intended for use in pharmaceutical compositions it will readily be understood that they are each provided in substantially pure form, for example at least 60% pure, more suitably at least 75% pure and preferably at least 85%, especially at least 95% pure, particularly at least 98% pure (% are on a weight for weight basis).
  • Impure preparations of the compounds may be used for preparing the more pure forms used in the pharmaceutical compositions; these less pure preparations of the compounds should contain at least 1%, more suitably at least 5% and preferably from 10 to 49% of a compound of the formula (I) or salt thereof.
  • Preferred compounds of the present invention include: l-(6-Chloro-benzo[l,3]dioxol-5-yl)-5-(2,6-dichloro-benzyloxy)-indan-2-carboxylic acid;
  • Any of these compounds can potentially be used to treat any disease caused by pathogens that possess a type II fatty acid synthesis pathway, such as mycobacteria.
  • diseases include, but are not limited to, malaria and tuberculosis.
  • Example 2 N- ⁇ l-ri-(6-Chloro-benzori,31dioxol-5-yl)-5-(2.6-dichloro-benzyloxy)-indan-2- yll-methanoyll-methanesulfonamide
  • DMAP 27 mg, 0.225 mmol
  • methanesulfonamide 21 mg, 0.225 mmol
  • Example 3 4-tert-Butyl-N- ⁇ l-ri-(6-chloro-benzon.31dioxol-5-yl)-5-(2,6-dichloro- benzyloxy)-indan-2-yl1-methanoyl ⁇ -benzenesulfonamide.
  • Example 5 4-( ⁇ l-ri-(6-Chloro-benzori,31dioxol-5-yl)-5-(2,6-dichIoro-benzyloxy)-indan-2-yll- methanovU-sulfamovD-benzoic acid methyl ester Following the procedures of Example 2 except that 4-Sulfamoyl-benzoic acid methyl ester (41 mg, 0.192 mmol) was used in place of methanesulfonamide. Purification by preparative HPLC yielded 0.010 g (11%) of the title compound.
  • Example 7 4-Chloro-3-( ⁇ l-ri-(6-chIoro-benzori,3Idioxol-5-vI)-5-(2,6-dichIoro-benzyIoxy)-indan-2- yll-methanoyl r-sulfamoyl)-benzoic acid methyl ester
  • FabH was assayed in a coupled format using his-tagged S.aureus FabD, and acyl carrier protein (ACP) purchased from Sigma. Lyophilized ACP was reduced using ⁇ -mercaptoethanol in phosphate buffer. Malonyl-CoA, and FabD were added to the reduced ACP, thus generating malonyl-ACP. After the FabD reaction reached equilibrium, [ ⁇ C] acetyl-CoA and inhibitors were added, and the reaction started by the addition of FabH. TCA precipitation and filtration was used to separate [ ⁇ C] acetyl-CoA substrate from [l ⁇ C] acetoacetyl-ACP product.
  • ACP acyl carrier protein
  • the present invention also provides a pharmaceutical composition, which comprises a compound of formula (I) or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof, and a pharmaceutically acceptable carrier.
  • a pharmaceutical composition which comprises a compound of formula (I) or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof, and a pharmaceutically acceptable carrier.
  • the compositions of the invention include those in a form adapted for oral, topical or parenteral use and may be used for the treatment of bacterial infection in mammals including humans.
  • the antibiotic compounds according to the invention may be formulated for administration in any convenient way for use in human or veterinary medicine, by analogy with other antibiotics.
  • compositions may be formulated for administration by any route, such as oral, topical or parenteral, especially oral.
  • the compositions may be in the form of tablets, capsules, powders, granules, lozenges, creams or liquid preparations, such as oral or sterile parenteral solutions or suspensions.
  • the topical formulations of the present invention may be presented as, for instance, ointments, creams or lotions, eye ointments and eye or ear drops, impregnated dressings and aerosols, and may contain appropriate conventional additives such as preservatives, solvents to assist drug penetration and emollients in ointments and creams.
  • the formulations may also contain compatible conventional carriers, such as cream or ointment bases and ethanol or oleyl alcohol for lotions.
  • suitable conventional carriers such as cream or ointment bases and ethanol or oleyl alcohol for lotions.
  • Such carriers may be present as from about 1% up to about 98% of the formulation. More usually they will form up to about 80% of the formulation.
  • Tablets and capsules for oral administration may be in unit dose presentation form, and may contain conventional excipients such as binding agents, for example syrup, acacia, gelatin, sorbitol, tragacanth, or polyvinylpyrollidone; fillers, for example lactose, sugar, maize-starch, calcium phosphate, sorbitol or glycine; tabletting lubricants, for example magnesium stearate, talc, polyethylene glycol or silica; disintegrants, for example potato starch; or acceptable wetting agents such as sodium lauryl sulphate.
  • the tablets may be coated according to methods well known in normal pharmaceutical practice.
  • Oral liquid preparations may be in the form of, for example, aqueous or oily suspensions, solutions, emulsions, syrups or elixirs, or may be presented as a dry product for reconstitution with water or other suitable vehicle before use.
  • Such liquid preparations may contain conventional additives, such as suspending agents, for example sorbitol, methyl cellulose, glucose syrup, gelatin, hydroxyethyl cellulose, carboxymethyl cellulose, aluminium stearate gel or hydrogenated edible fats, emulsifying agents, for example lecithin, sorbitan monooleate, or acacia; non- aqueous vehicles (which may include edible oils), for example almond oil, oily esters such as glycerine, propylene glycol, or ethyl alcohol; preservatives, for example methyl or propyl p-hydroxybenzoate or sorbic acid, and, if desired, conventional flavouring or colouring agents.
  • suspending agents for example sorbitol, methyl cellulose, glucose syrup, gelatin, hydroxyethyl cellulose, carboxymethyl cellulose, aluminium stearate gel or hydrogenated edible fats, emulsifying agents, for example lecithin, sorbitan monooleate,
  • Suppositories will contain conventional suppository bases, e.g. cocoa-butter or other glyceride.
  • fluid unit dosage forms are prepared utilizing the compound and a sterile vehicle, water being preferred.
  • the compound depending on the vehicle and concentration used, can be either suspended or dissolved "in the vehicle.
  • the compound can be dissolved in water for injection and filter sterilized before filling into a suitable vial or ampoule and sealing.
  • the solution preferably contains a buffer (such as phosphate) to keep th pH in the range of about 3.5 to 7.
  • DMSO or alcoholic solvents may also be present (at concentrations such as 0.01 to 10 mL/liter) to aid solubility and penetration of the compound of Formula (I)
  • agents such as a local anaesthetic, preservative and buffering agents can be dissolved in the vehicle.
  • the composition can be frozen after filling into the vial and the water removed under vacuum.
  • the dry lyophilized powder is then sealed in the vial and an accompanying vial of water for injection may be supplied to reconstitute the liquid prior to use.
  • Parenteral suspensions are prepared in substantially the same manner except that the compound is suspended in the vehicle instead of being dissolved and sterilization cannot be accomplished by filtration.
  • the compound can be sterilized by exposure to ethylene oxide before suspending in the sterile vehicle.
  • a surfactant or wetting agent is included in the composition to facilitate uniform distribution of the compound.
  • compositions may contain from 0.1% by weight, preferably from 10-60% by weight, of the active material, depending on the method of administration. Where the compositions comprise dosage units, each unit will preferably contain from 50-500 mg of the active ingredient.
  • the dosage as employed for adult human treatment will preferably range from 1 to 140 mg/kg of body weight, depending on the route and frequency of administration..
  • Inhibitors of ⁇ -ketoacyl-ACP Synthase (FabH) can be administered by injection in solutions either intravenously, intramuscularly, intraperitoneally, or orally.
  • the solution preferably contains a buffer (such as phosphate) to keep the pH in the range of about 3.5 to 7.
  • DMSO or alcoholic solvents may also be present (at concentrations such as 0.01 to 10 mL/liter) to aid solubility and penetration of the ⁇ - ketoacyl-ACP Synthase (FabH) inhibitor.
  • the compound of formula (I) may be the sole therapeutic agent in the compositions of the invention or a combination with other antibiotics or compounds which enhance the antibacterial activity of a compound of formula (I)may be employed.
  • the antibiotic compounds of the present invention are active against a wide range of organisms including both Gram-negative organisms such as Escherichia coli and Klebsiella pneumoniae and Gram-positive organisms such as Staphylococcus aureus, Streptococcus pneumoniae, Enterococcus faecalis and Enterococcus faecium, including isolates resistant to existing antibiotics.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Cette invention se rapporte à l'utilisation de composés comme inhibiteurs de la synthase d'acides gras FabH.
PCT/US2001/020926 2000-06-29 2001-06-29 Inhibiteurs de la synthase d'acides gras WO2002002119A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001271718A AU2001271718A1 (en) 2000-06-29 2001-06-29 Fatty acid synthase inhibitors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21488900P 2000-06-29 2000-06-29
US60/214,889 2000-06-29

Publications (1)

Publication Number Publication Date
WO2002002119A1 true WO2002002119A1 (fr) 2002-01-10

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AU (1) AU2001271718A1 (fr)
WO (1) WO2002002119A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6858602B2 (en) 2001-06-12 2005-02-22 Wellstat Therapeutics Corporation Compounds for the treatment of metabolic disorders
US7645772B2 (en) 2002-11-01 2010-01-12 Wellstat Therapeutics Corporation Treatment of metabolic disorders
US10399951B2 (en) 2013-03-13 2019-09-03 Forma Therapeutics, Inc. Compounds and compositions for inhibition of FASN
US10793554B2 (en) 2018-10-29 2020-10-06 Forma Therapeutics, Inc. Solid forms of 4-(2-fluoro-4-(1-methyl-1H-benzo[d]imidazol-5-yl)benzoyl)piperazin-1-yl)(1-hydroxycyclopropyl)methanone
US10875848B2 (en) 2018-10-10 2020-12-29 Forma Therapeutics, Inc. Inhibiting fatty acid synthase (FASN)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5409956A (en) * 1991-03-01 1995-04-25 Zeria Pharmaceutical Co., Ltd. Indan derivative and thromboxane antagonist containing the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5409956A (en) * 1991-03-01 1995-04-25 Zeria Pharmaceutical Co., Ltd. Indan derivative and thromboxane antagonist containing the same

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8487000B2 (en) 2001-06-12 2013-07-16 Wellstat Therapertics Corporation Compound for the treatment of metabolic disorders
US7863475B2 (en) 2001-06-12 2011-01-04 Wellstat Therapeutics Corporation Compounds for the treatment of metabolic disorders
US6924314B2 (en) 2001-06-12 2005-08-02 Wellstat Therapeutics Corporation Compounds for the treatment of metabolic disorders
US6946491B2 (en) 2001-06-12 2005-09-20 Wellstat Therapeutics Corporation Compounds for the treatment of metabolic disorders
US7012071B2 (en) 2001-06-12 2006-03-14 Wellstat Therapeutics Corporation Compounds for the treatment of metabolic disorders
US7041659B2 (en) 2001-06-12 2006-05-09 Wellstat Therapeutics Corporation Compounds for the treatment of metabolic disorders
US7045541B2 (en) 2001-06-12 2006-05-16 Wellstat Therapeutics Corporation Compounds for the treatment of metabolic disorders
US7101910B2 (en) 2001-06-12 2006-09-05 Wellstat Therapeutics Corporation Compounds for the treatment of metabolic disorders
US7329782B2 (en) 2001-06-12 2008-02-12 Wellstat Therapeutics Corporation Compounds for the treatment of metabolic disorders
US7547802B2 (en) 2001-06-12 2009-06-16 Wellstat Therapeutics Corporation Compounds for the treatment of metabolic disorders
US6858602B2 (en) 2001-06-12 2005-02-22 Wellstat Therapeutics Corporation Compounds for the treatment of metabolic disorders
US8552062B2 (en) 2001-06-12 2013-10-08 Wellstat Therapeutics Corporation Methods for the treatment of metabolic disorders such as diabetes
US6916848B2 (en) 2001-06-12 2005-07-12 Wellstat Therapeutics Corporation Compounds for the treatment of metabolic disorders
US8604083B2 (en) 2001-06-12 2013-12-10 Wellstat Therapeutics Corporation Method for the treatment of metabolic disorders
US7645772B2 (en) 2002-11-01 2010-01-12 Wellstat Therapeutics Corporation Treatment of metabolic disorders
US10399951B2 (en) 2013-03-13 2019-09-03 Forma Therapeutics, Inc. Compounds and compositions for inhibition of FASN
US10450286B2 (en) 2013-03-13 2019-10-22 Forma Therapeutics, Inc. Compounds and compositions for inhibition of FASN
US10457655B2 (en) 2013-03-13 2019-10-29 Forma Therapeutics, Inc. Compounds and compositions for inhibition of FASN
US10472342B2 (en) 2013-03-13 2019-11-12 Forma Therapeutics, Inc. Compounds and compositions for inhibition of FASN
US10995078B2 (en) 2013-03-13 2021-05-04 Forma Therapeutics, Inc. Compounds and compositions for inhibition of FASN
US10800750B2 (en) 2013-03-13 2020-10-13 Forma Therapeutics, Inc. Compounds and compositions for inhibition of FASN
US10875848B2 (en) 2018-10-10 2020-12-29 Forma Therapeutics, Inc. Inhibiting fatty acid synthase (FASN)
US11299484B2 (en) 2018-10-10 2022-04-12 Forma Therapeutics, Inc. Inhibiting fatty acid synthase (FASN)
US10793554B2 (en) 2018-10-29 2020-10-06 Forma Therapeutics, Inc. Solid forms of 4-(2-fluoro-4-(1-methyl-1H-benzo[d]imidazol-5-yl)benzoyl)piperazin-1-yl)(1-hydroxycyclopropyl)methanone
US11267805B2 (en) 2018-10-29 2022-03-08 Forma Therapeutics, Inc. Solid forms of (4-(2-fluoro-4-(1-methyl-1H-benzo[d]imidazol-5-yl)benzoyl) piperazine-1-yl)(1-hydroxycyclopropyl)methanone

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