申请人:SMITH KLINE & FRENCH LABORATORIES
LIMITED
公开号:EP0112142A2
公开(公告)日:1984-06-27
The present invention provides compounds of formula (1):-
and their pharmaceutically acceptable salts which are useful as histamine H1-antagonists. In formula (1)
R' is halogen, nitro, amino (or a pharmaceutically acceptable derivative of the amino group which is convertible in vivo into amino) or C1-4 alkyl;
R2 is halogen, nitro, amino (or a pharmaceutically acceptable derivative of the amino group which is convertible in vivo into amino), C1-4 alkyl or C3-4 alkoxy;
R3 is a C1-3 alkylene group; and
R4 is a group of formula (2):-
where R5 is NCN, NNO2, NH or CHNO2 and R6 is hydroxy, amino, C1-6 alkyl, optionally substituted phenyl- or pyridyl(C1-6)alkyl (the optional substituents being one or more C1-6 alkyl, or C1-6 alkoxy groups or halogen atoms or a methylenedioxy group);
or C2-4 alkynyl;
or R4 is a group of formula (3):-
where R7 is a covalent bond or methylene or ethane-1, 2-diyl optionally substituted with one C1-6 alkyl group and a second C1-6 alkyl group or a phenyl(C1-6)alkyl group;
or a group of formula (4):-
where RS is hydrogen; C1-6 alkyl; optionally substituted phenyl or phenyl(C1-6)alkyl, (the substituents being one or more C1-6 alkyl or C1-6 alkoxy groups or halogen atoms or a methylenedioxo group) or optionally substituted pyridyl or pyridyl(C1-6)alkyl, the optional substituents being one or more C1-6 alkyl groups or C1-6 alkoxy groups or halogen atoms; and R9 is hydrogen or C1-6 alkyl;
or a group of formula (5):-
where n is 0, 1 or 2
R10 is hydrogen, C1-6 alkyl, or optionally substituted phenyl or phenyl(C1-6)alkyl (the substituents being one or more C1-6 alkyl, or C1-6 alkoxy groups or halogen atoms); or a methylenedioxy group or optionally substituted pyridyl or pyridyl(C1-6)alkyl where the optional substituents are one or more C1-6 alkyl or C1-6 alkoxy groups or halogen atoms:
or a group of formula (6):-
where R" is hydrogen, C1-6 alkyl, optionally substituted phenyl or phenyl(C1-6)alkyl, (the substituents being one or more C1-6 alkyl or C1-6 alkoxy groups or halogen atoms or a methylenedioxy group); optionally substituted pyridyl or pyridyl(C1-6)alkyl, the optional substituents being one or more C1-6 alkyl groups or C1-6 alkoxy groups or halogen atoms;
or a group of formula (7):-
where R12 is hydrogen or C1-6 alkyl, R15 is hydrogen or together with R12 is a fused benzene ring and m is 0, or 2
or a group of formula (8):-
where R12 is hydrogen or C1-6 alkyl.
本发明提供了式 (1): - 的化合物及其药学上可接受的盐类。
及其药学上可接受的盐类,可用作组胺 H1-拮抗剂。式(1)中
R'是卤素、硝基、氨基(或可在体内转化为氨基的氨基的药学上可接受的衍生物)或 C1-4 烷基;
R2 是卤素、硝基、氨基(或可在体内转化为氨基的氨基的药学上可接受的衍生物)、C1-4 烷基或 C3-4 烷氧基;
R3 是 C1-3 亚烷基;以及
R4 是式(2)的基团
其中 R5 是 NCN、NNO2、NH 或 CHNO2,R6 是羟基、氨基、C1-6 烷基、任选取代的苯基或吡啶基(C1-6)烷基(任选取代基是一个或多个 C1-6 烷基或 C1-6 烷氧基或卤素原子或亚甲基二氧基);
或 C2-4 烷炔基;
或 R4 是式 (3) 的基团:- R7 是共价基团。
其中 R7 是共价键或亚甲基或乙烷-1,2-二基,任选被一个 C1-6 烷基和第二个 C1-6 烷基或苯基(C1-6)烷基取代;
或式(4)的基团:- 其中 RS 为氢
其中 RS 为氢;C1-6 烷基;任选取代的苯基或苯基(C1-6)烷基,(取代基为一个或多个 C1-6 烷基或 C1-6 烷氧基或卤素原子或亚甲基二氧代基)或任选取代的吡啶基或吡啶基(C1-6)烷基,任选取代基为一个或多个 C1-6 烷基或 C1-6 烷氧基或卤素原子;以及 R9 为氢或 C1-6 烷基;
或式 (5) 的基团:-
其中 n 为 0、1 或 2
R10 是氢、C1-6 烷基或任选取代的苯基或苯基(C1-6)烷基(取代基是一个或多个 C1-6 烷基或 C1-6 烷氧基或卤素原子);或亚甲基二氧基或任选取代的吡啶基或吡啶基(C1-6)烷基,其中任选取代基是一个或多个 C1-6 烷基或 C1-6 烷氧基或卤素原子:
或式(6)的基团:-
其中 R "为氢、C1-6 烷基、任选取代的苯基或苯基(C1-6)烷基(取代基为一个或多个 C1-6 烷基或 C1-6 烷氧基或卤素原子或亚甲基二氧基);任选取代的吡啶基或吡啶基(C1-6)烷基,其中任选取代基为一个或多个 C1-6 烷基或 C1-6 烷氧基或卤素原子;
或式(7)的基团:-
其中 R12 为氢或 C1-6 烷基,R15 为氢或与 R12 一起为熔合苯环,m 为 0 或 2
或式(8)的基团:- 其中 R12 是氢或 C1-6 烷基
其中 R12 是氢或 C1-6 烷基。