Benzopyran and benzo-fused compounds, their preparation and...

C - Chemistry – Metallurgy – 07 – D

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C07D 311/22 (2006.01) A61K 31/18 (2006.01) A61K 31/19 (2006.01) A61K 31/33 (2006.01) C07C 65/17 (2006.01) C07C 311/09 (2006.01) C07D 215/22 (2006.01) C07D 307/83 (2006.01) C07D 311/58 (2006.01) C07D 333/64 (2006.01) C07D 335/06 (2006.01)

Patent

CA 2201742

This invention relates to novel benzopyran and other benzo-fused leukotriene B4 (LTB4) antagonists of formula (I), and the pharmaceutically acceptable salts thereof, wherein A1 is O, CH2, S, NH or N(C1-C6)alkyl; R3 is hydrogen or hydroxy; A2 is (a), (b) or (c); R1 is selected from the group consisting of tetrazolyl, carboxy, cis or trans -(CH2)m-CX1=CX2-CO2H, -(CH2)mCX3X4X5, -CO- NG1G2, (d), and a substituted five or six membered aromatic ring optionally having one or two heteroatoms where the heteroatoms are optionally independently selected from the group consisting of O, S and N; R2 is hydrogen, fluoro, chloro, (C1-C6)alkyl, (C1-C6)alkoxy, (C1-C4)perfluoroalkyl, (C1-C4)perfluoroalkoxy, (C1-C6)alkylthio, (C1-C6)alkylsulfinyl, phenylsulfinyl, (C1-C6)alkylsulfonyl or phenylsulfonyl; to pharmaceutical compositions containing such compounds or a pharmaceutically acceptable salt thereof, and to methods of using such compounds as LTB4 antagonists. The compounds and the pharmaceutically acceptable salts of this invention inhibit the action of LTB4 and are therefore useful in the treatment of LTB4 induced illnesses such as inflammatory disorders including rheumatoid arthritis, osteoarthritis, inflammatory bowel disease, psoriasis and other skin disorders such as eczema, erythema, pruritus and acne, stroke and other forms of reperfusion injury, graft rejection, autoimmune diseases, asthma, and other conditions where marked neutrophil infiltration occurs.

L'invention concerne de nouveaux antagonistes de leucotriène B¿4? (LTB¿4?) au benzopyranne et benzo-fusionnés ayant la formule (I), ainsi que leurs sels pharmaceutiquement acceptables. Dans la formule (I), A?1¿ représente O, CH¿2?, S, NH ou N(C¿1?-C¿6?)alkyle; R3 représente hydrogène ou hydroxy; A?2¿ représente (a), (b) ou (c); R?1¿ est sélectionné dans le groupe constitué de tétrazolyle, carboxy, cis- ou trans-(CH¿2?)¿m?-CX?1¿ = CX?2¿-CO¿2?H, -(CH¿2?)¿m?CX?3¿X?4¿X?5¿, -CO-NG?1¿G?2¿, (d), et un cycle aromatique à cinq ou six éléments ayant le cas échéant un ou deux hétéroatomes, les hétéroatomes étant le cas échéant sélectionnés indépendamment dans le groupe constitué d'O, S et N; R?2¿ désigne hydrogène, fluoro, chloro, (C¿1?-C¿6?)alkyle, (C¿1?-C¿6?)alcoxy, (C¿1?-C¿4?)perfluoroalkyle, (C¿1?-C¿4?)perfluoroalcoxy, (C¿1?-C¿6?)alkylthio, (C¿1?-C¿6?)alkylsulfinyle, phénylsulfinyle, (C¿1?-C¿6?)alkylsulfonyle ou phénylsulfonyle. L'invention concerne également des compositions pharmaceutiques contenant ces composés ou un sel pharmaceutiquement acceptable de ceux-ci, et des procédés d'utilisation de ces composés comme antagonistes de LTB¿4?. Ces composés et leurs sels pharmaceutiquement acceptables inhibent l'action de LTB¿4? et sont par conséquent utiles pour traiter des maladies induites par le LTB¿4?, telles que des maladies inflammatoires, y compris la polyarthrite rhumatoïde, l'ostéoarthrite, la colopathie fonctionnelle, le psoriasis et d'autres maladies de la peau telles que l'eczéma, des érythèmes, des prurits et l'acné, des ictus et d'autres types de lésions dus à des reperfusions, des rejets de greffes, des maladies auto-immunitaires, l'asthme et d'autres états caractérisés par une infiltration marquée de neutrophiles.

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