PROSTAGLANDIN E1 ANALOGUE

摘要

Object: to provide a novel prostaglandin E1 which is excellent in drug efficacy while reduced in adverse reactions as compared with conventional ones. Constitution: a PGE1 analogue represented by general formula (I) and its salt, wherein A represents vinylene or ethynylene; R<1> represents hydrogen, C1 to C6 alkyl or aryl; and R<2> represents C5 to C10 branched aliphatic hydrocarbyl.