| abstract |
A sleep inducing agent comprising, as an active component, a prostaglandin derivative represented by formula (1), wherein X represents a halogen atom, Y represents a group represented by (CH2)m, a cis-vinylene group or a phenylene group, Z represents an ethylene group, a trans-vinylene group, OCH2 or S(O)nCH2, R1 is a C¿3-10? cycloalkyl group, a C3-10 cycloalkyl group substituted with a C1-4 alkyl group, a C4-13 cycloalkylalkyl group, a C5-10 alkyl group, a C5-10 alkenyl group, an C5-10 alkynyl group or a bridged cyclic hydrocarbon group, R?2¿ represents a hydrogen atom, a C¿1-10? alkyl group or a C3-10 cycloalkyl, m is an integer of 1 to 3, and n is 0, 1 or 2, or a pharmaceutically acceptable salt or hydrate thereof. |