| abstract |
A prostaglandin derivative represented by the formula: wherein X is a halogen atom, n is an integer of 1 to 5, R1 is a C3-10 cycloalkyl group, a C3-10 cycloalkyl group substituted with C1-4 alkyl group(s), a C4-13 cycloalkylalkyl group, a C5-10 alkyl group, a C5-10 alkenyl group, a C5-10 alkynyl group or a bridged cyclic hydrocarbon group, and R2 is a hydrogen atom, a C1-10 alkyl group or a C3-10 cycloalkyl group, or a pharmaceutically acceptable salt thereof. |