Hidtil ukendte bicykliske forbindelser

摘要

Compounds of the general formula (I): or a salt thereof, wherein R<1> is hydrogen, hydroxyl or halogen; R<2> is NHSO2CH3, SO2NHCH3 or the like; R<5> and R<6> each independently is hydrogen, C1-6 alkyl, optionally substituted phenyl or optionally substituted benzyl; X is NH, sulfur, oxygen or methylene; Y is oxygen, NR<7>, sulfur, methylene or a bond; and * represents an asymmetric carbon atom. The compounds are useful as a medicine for treating or preventing diabetes, obesity, hyperlipidemia, digestive diseases, depression or urinary disturbances.