Compounds of formula (I), or salts thereof: ##STR1## wherein: X is oxygen or sulphur, or >C.dbd.X represents ##STR2## Y is --CH.sub.2 --CH.sub.2 -- or --CH.dbd.CH--; n is 1 to 5; R.sub.1 is hydrogen or C.sub.1-6 alkyl; R.sub.2 is hydrogen or C.sub.1-4 alkyl; and R.sub.3 is C.sub.4-9 alkyl, C.sub.5-8 cycloalkyl, or C.sub.5-8 cycloalkyl --C.sub.1-6 alkyl; or R.sub.2 and R.sub.3 taken with the carbon atom to which they are joined represent a C.sub.5-8 cycloalkyl group, having useful pharmacological activity, pharmaceutical compositions containing them and a process for their preparation.
Prostaglandin analogue imidazole derivatives, a process for their preparation and a pharmaceutical composition containing them
申请人:BEECHAM GROUP PLC
公开号:EP0006353A1
公开(公告)日:1980-01-09
A compound of the formula (I):
wherein:
X is O, S or H2;
Yis-CH2-CH2 -CH = CH- or C≡C-;
n is 1 to 7;
R, is C1-4alkyl;
R3 is hydroxy or protected hydroxy;
R4 is C1-9 alkyl, C3-8 cycloalkyl or C3-8 cycloalkyl-C1-6 alkyl; or
R2 and R4 taken with the carbon atom to which they are joined represent a C5-8 cycloalkyl group; and R5 is hydrogen or C1-6 alkyl; and salts thereof have useful pharmaceutical activity including bronchodilator activity. A method for the preparation is given.
Hydantoin derivatives, their preparation and pharmaceutical compositions
申请人:BEECHAM GROUP PLC
公开号:EP0014076A2
公开(公告)日:1980-08-06
Compounds of formula (I), or salts thereof:
wherein:
X is oxygen or sulphur, or
represents
Y is-CH2-CH2-or-CH=CH-;
n is 1 to 5;
R, is hydrogen or C1-6alkyl;
R2 is hydrogen or C1-4alkyl; and
R3 is C4-9alkyl, C5-8cycloalkyl, or C5-8 cycloalkyl -C1-6alkyl; or
R2 and R3 taken with the carbon atom to which they are joined represent a C5-8cycloalkyl group, having useful pharmacological activity, pharmaceutical compositions containing them and a process for their preparation.
式 (I) 的化合物或其盐类:
其中
X 是氧或硫,或
代表
Y 是-CH2-CH2-或-CH=CH-;
n 是 1 至 5;
R 是氢或 C1-6 烷基;
R2是氢或C1-4烷基;和
R3 是 C4-9 烷基、C5-8 环烷基或 C5-8 环烷基 -C1-6 烷基;或
R2 和 R3 与它们连接的碳原子一起代表 C5-8 环烷基,具有有用的药理活性、含有它们的药物组合物及其制备方法。