申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0355970A1
公开(公告)日:1990-02-28
The invention concerns a 1,2-dihydro-3H-indazol-3-one derivative of formula I
wherein Ra is hydrogen, halogeno, hydroxy, cyano, trifluoromethyl, (1-6C)alkyl or (1-6C)alkoxy;
Rb is hydrogen or (1-6C)alkyl;
Rc is hydrogen, (1-8C)alkyl or (3-8C)alkenyl; and
Y is (1-8C)alkyl, (3-8C)alkenyl or (3-8C)alkynyl, or
Y is a group of the formula -A-Q in which A is (1-6C)alkylene or (3-6C)alkenylene, and Q is phenyl, naphthyl, pyridyl, thienyl, isoxazolyl, thiazolyl or thiadiazolyl, which may optionally bear one or two substituents;
or a pharmaceutically-acceptable salt thereof;
or a (1-4C)alkoxycarbonyl derivative thereof.
The invention also concerns processes for the manufacture of an indazol-3-one of the formula I and pharmaceutical compositions containing said indazol-3-one. Also included in the invention is a method of treating various inflammatory or allergic diseases using an indazol-3-one of the formula I and the use of such a compound in the production of a new medicament for such use.
本发明涉及式 I 的 1,2-二氢-3H-吲唑-3-酮衍生物
其中Ra是氢、卤素、羟基、氰基、三氟甲基、(1-6C)烷基或(1-6C)烷氧基;
Rb 是氢或 (1-6C) 烷基
Rc 是氢、(1-8C)烷基或(3-8C)烯基;以及
Y 是(1-8C)烷基、(3-8C)烯基或(3-8C)炔基,或
Y 是式-A-Q 的基团,其中 A 是(1-6C)亚烷基或(3-6C)烯基,Q 是苯基、萘基、吡啶基、噻吩基、异噁唑基、噻唑基或噻二唑基,可任选带有一个或两个取代基;
或其药学上可接受的盐;
或其(1-4C)烷氧基羰基衍生物。
本发明还涉及式 I 的吲唑-3-酮的制造工艺和含有所述吲唑-3-酮的药物组合物。本发明还包括一种使用式 I 的吲唑-3-酮治疗各种炎症或过敏性疾病的方法,以及使用这种化合物生产用于这种用途的新药物。