Prostaglandin analogues of the formula: ##STR1## wherein X represents oxygen or sulphur, R.sup.1 and R.sup.2 each represent hydrogen or alkyl of from 1 to 3 carbon atoms, alkenyl of from 2 to 4 carbon atoms or trifluoromethyl, and the double bonds depicted in positions C.sub.5 -C.sub.6 and C.sub.13 -C.sub.14 are cis and trans respectively. These compounds are indicated in the treatment of impaired fertility, induction of labor or termination of pregnancy in females.
公式为:##STR1## 其中X代表氧或
硫,R.sup.1和R.sup.2分别代表氢或1至3个碳原子的烷基,2至4个碳原子的烯基或三
氟甲基,所示的C.sub.5-C.sub.6和C.sub.13-C.sub.14位置上的双键分别为顺式和反式。这些化合物适用于治疗女性的生育能力受损、引产或终止妊娠。