Compounds of the formula 1:
wherein:
X is 0 or S;
R, is hydrogen, or C02R1 represents an ester group in which the R1 moiety contains from 1 - 12 carbon atoms;
R2 is hydrogen or C1-4 alkyl;
R4 is C7-9 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 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 1 的化合物:
其中
X 是 0 或 S;
R 是氢,或 C02R1 代表酯基,其中 R1 分子含有 1-12 个碳原子;
R2 是氢或 C1-4 烷基;
R4 是 C7-9 烷基、C3-8 环烷基或 C3.8 环烷基-C1-6 烷基;或
R2 和 R4 与它们连接的碳原子一起代表 C5-8 环烷基;以及
R5是C1-6烷基;及其盐类,具有与天然
前列腺素相似的活性,制备它们的工艺,在该工艺中有用的中间体,以及含有它们的药物组合物。