Pyrazolopyridines, their preparation and pharmaceutical compositions containing them
申请人:BEECHAM GROUP PLC
公开号:EP0193329A2
公开(公告)日:1986-09-03
Compounds of the formula (I):
wherein:
X is NR wherein R is hydrogen, C1-6 alkyl or as defined hereinafter with R3; oxygen; sulphur; SO; or SO2;
R, is hydrogen or C1-6alkyl; and R2 is CN, CR5R6Y where Rs and R6 are independently selected from hydrogen and C1-4 alkyl and Y is selected from hydrogen, OR, or SR, where R7 is hydrogen, C1-4 alkyl or C2-4 alkanoyl, and NR8R9 where R8 and R9 are independently hydrogen, C1-4 alkyl, C 2.4 alkenyl or C2-4 alkanoyl or together are C 4-6 polymethylene, or COR10 where R,o is C1-4 alkyl, provided that Y is other than hydrogen when R, is hydrogen;
or
R2 is hydrogen, C1-6 alkyl or phenyl optionally substituted by halogen, CF3, C1-4 alkoxy or C1-4 alkyl; and R, is CN, CR5R6Y or COR10 as defined for R2 above;
or
R1 and R2 together form C3-C6 polymethylene optionally substituted by C1-C4 alkyl;
R3 is C1-10 alkyl or C3-10 cycloalkyl, eitheroptionally substituted by hydroxy, C1-4 alkoxy, thiol, C1-4alkylthio or NR11R12 wherein R,, and R12 are independently hydrogen, C1-6 alkyl or C 2-7 alkanoyl or together are C3.6 polymethylene; C2-10 alkenyl; or phenyl optionally substituted by one or two of halogen, CF,, C1-4 alkoxy, C1-4 alkyl, hydroxy, nitro, cyano, C2-10 acyloxy, NR13R14 wherein R13 and R14 are independently selected from hydrogen, C1-6 alkyl, C2-7alkanoyl or C1-6 alkylsulphonyl or COR15 wherein R15 is hydroxy, C1-6 alkoxy or NR16R17 wherein R16 and R,7 are independently selected from hydrogen or C1-6 alkyl; or together with R is C 4-6 polymethylene; and
R4 is hydrogen; or C1-4 alkyl or benzyl optionally substituted in the phenyl ring by one or two of halogen, CF3, C1-4 alkoxy or C1-4 alkyl and is attached at nitrogen atom 1 or 2, are disclosed as having utility in the treatment of inflammatory and allergic disorders.
式 (I) 的化合物:
其中
X 是 NR,其中 R 是氢、C1-6 烷基或下文定义的 R3、氧、硫、SO 或 SO2;
R,是氢或 C1-6 烷基;和 R2 是 CN、CR5R6Y(其中 Rs 和 R6 独立选自氢和 C1-4 烷基)和 Y(选自氢、OR 或 SR),其中 R7 是氢、C1-4 烷基或 C2-4 烷酰基,和 NR8R9(其中 R8 和 R9 独立是氢、C1-4 烷基、C 2.4 烯基或 C2-4 烷酰基)或一起是 C 4-6 聚亚甲基,或 COR10(其中 R,o 是 C1-4 烷基),条件是当 R,是氢时,Y 不是氢;
或
R2 是氢、C1-6 烷基或任选被卤素、CF3、C1-4 烷氧基或 C1-4 烷基取代的苯基;且 R 是 CN、CR5R6Y 或 COR10,如上文对 R2 所定义;
或
R1 和 R2 共同形成任选被 C1-C4 烷基取代的 C3-C6 聚亚甲基;
R3是C1-10烷基或C3-10环烷基,任选被羟基、C1-4烷氧基、硫醇、C1-4烷硫基或NR11R12取代,其中R,,和R12独立地是氢、C1-6烷基或C 2-7烷酰基,或一起是C3.6聚亚甲基;C2-10烯基;或可选被卤素、CF、C1-4烷氧基、C1-4烷基、羟基、硝基、氰基、C2-10酰氧基、NR13R14(其中R13和R14独立地选自氢、C1-6烷基、C2-7烷酰基或C1-6烷基磺酰基)或COR15(其中R15是羟基、C1-6烷氧基或NR16R17(其中R16和R,7独立地选自氢或C1-6烷基)或与R一起是C 4-6聚亚甲基中的一个或两个取代的苯基)取代的苯基。
R4 是氢;或 C1-4 烷基或苄基,可选择在苯环上被卤素、CF3、C1-4 烷氧基或 C1-4 烷基中的一个或两个取代,并连接在氮原子 1 或 2 上。