Optically active compound, process for producing the same osteogenese promoter agent to prevent or treat bone diseases promoter for healing of bone fracture processes to promote the osteogenese andTo prevent or treat bone diseases in a mammal and use of an optically active compound

摘要

This invention relates to an optically active benzothiepin derivative represented by the formula: CHEM wherein R represents a lower alkyl group; R1 and R2 independently represent a lower alkyl group, or may bind together to form a ring, which exhibits excellent osteogenesis-promoting action and is useful as a prophylactic or therapeutic drug for bone diseases.