BENZOPYRANYL TETRACYCLES INHIBITING RANKL-INDUCED OSTEOCLASTOGENESIS

摘要

PURPOSE: A novel benzopyranyl tetracycle compound and a method for preparing the same are provided to effectively inhibit RANKL-induced osteoclastogenesis. CONSTITUTION: A novel benzopyranyl tetracycle compound is denoted by chemical formula 1. In chemical formula 1, R1 is hydrogen atom or hydroxyl; R2 and R'2 are identical or different methyl or cyclopentyl; and R3 is phenyl or p-methyl phenyl. A therapeutic agent for treating bone diseases contains the benzopyranyl tetracycle compounds as an active ingredient. The effective dose of the benzopyranyl tetracycle compounds is 1-50mg/kg/day.