1.2.4-Triazolidine-3.5-dione derivatives, process for their preparation and pharmaceutical compositions containing them
申请人:BEECHAM GROUP PLC
公开号:EP0006718A1
公开(公告)日:1980-01-09
Coumpounds of the formula (I)
wherein:
n is 1 to 5
R1 is hydrogen or CO2R1 represents an ester group in which the R, moiety contains from 1-12 carbon atoms;
R2 is hydrogen, C1-4 alkyl or phenyl;
R3 is hydroxy or protected hydroxy;
R4 is a group of the formula: L-Q-R10 in which
Q is an oxygen atom, a -CH=CH- group or a -C≡C- group, and
L is a C1-9 alkylene group; and
R10 is C1-4 alkyl, phenyl or naphthyl, any of which phenyl or naphthyl moieties may be subetituted by one or more halogen. trifluoromethyl. C1-6 alkyl, hydroxy, C1-6 alkoxy, phenyl C1-6 alkoxy or nitro groups, or if Q is a -CH=CH- group, then R10 may be a hydrogen atom; and R5 is hydrogen or C1-6 alkyl; and salts thereof, having similar activity to natural prostaglandins, a process for their preparation, intermediates useful in that process and pharmaceutical compositions containing them.
式(I)的偶化合物
其中
n 是 1 至 5
R1 是氢或 CO2R1 代表酯基,其中 R,分子含有 1-12 个碳原子;
R2 是氢、C1-4 烷基或苯基;
R3 是羟基或受保护的羟基;
R4 是式中的一个基团:L-Q-R10 其中
Q 是氧原子、-CH=CH- 基团或-C≡C- 基团,以及
L是C1-9亚烷基;和
R10 是 C1-4 烷基、苯基或萘基,其中任何苯基或萘基都可被一个或多个卤素、三氟甲基、C1-6 烷基、羟基或萘基取代。C1-6烷基、羟基、C1-6烷氧基、苯基C1-6烷氧基或硝基,或者如果Q是-CH=CH-基团,则R10可以是氢原子;R5是氢或C1-6烷基;及其盐类,具有与天然前列腺素相似的活性,其制备工艺,在该工艺中有用的中间体以及含有它们的药物组合物。