The invention described herein relates to novel 15-deoxy-16-hydroxy-16-ethynyl or 16-(1-propynyl) prostaglandins of E, F, D and A series having on the terminal methylene carbon of the alpha chain a substituent selected from the group consisting of: ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen and C.sub.1 -C.sub.6 alkyl; R.sub.15 is selected from the group consisting of C.sub.1 -C.sub.4 alkyl, di-C.sub.1 -C.sub.4 -alkylamino, phenyl and phenyl substituted with one or more substituents selected from the group consisting of C.sub.1 -C.sub.4 alkyl, OR, SR, F or Cl, wherein R is an alkyl group.
本发明涉及一种新型的E、F、D和A系列的15-去氧-16-羟基-16-
乙炔或16-(1-
丙炔基)
前列腺素,其在α链的末端亚甲基碳上具有从以下组中选择的取代基:##STR1## 其中R1选择自氢和C1-C6烷基组成的组;R15选择自C1-C4烷基,二C1-C4烷基
氨基,苯基和苯基取代物,所述苯基取代物选择自C1-C4烷基,OR,SR,F或Cl组成的取代基,其中R是烷基。