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; R¹ represents hydrogen, C₁ to C₆ alkyl or aryl; and R² represents C₅ to C₁₀ branched aliphatic hydrocarbyl.
目的:提供一种新型的
前列腺素 E₁,与传统的
前列腺素 E₁相比,它具有极佳的药效,同时减少了不良反应。组成:通式(I)代表的
PGE₁ 类似物及其盐,其中 A 代表
乙烯基或
乙炔基;R¹ 代表氢、C₁ 至 C₆ 烷基或芳基;R² 代表 C₅ 至 C₁₀ 支链脂族烃基。