A 15-deoxyprostaglandin derivative of general formula (I) and an intraocular pressure depressant containing said derivative or a pharmaceutically acceptable salt thereof as the active ingredient. In formula (I), (a) is a five-membered ring selected from among (b), (c), (d), (e), (f); R¹ represents hydrogen or lower alkyl; and R² represents C₆ to C₁₂ alkyl, C₆ to C₁₂ alkenyl or C₆ to C₁₂ alkadienyl, provided that a compound of formula (II) (wherein R' represents H or CH₃) is excluded.
一种通式(I)的 15-
脱氧前列腺素衍
生物和一种含有上述衍
生物或其药学上可接受的盐作为活性成分的眼压降低剂。在式 (I) 中,(a) 是选自 (b)、(c)、(d)、(e)、(f) 的五元环;R¹ 代表
氢或低级烷基;和 R² 代表 C₆ 至 C₁₂ 烷基、C₆ 至 C₁₂
烯基或 C₆ 至 C₁₂ 二
烯基,但不包括式 (II) 的化合物(其中 R' 代表 H 或 CH₃)。