METHOD FOR USING HARPAGIDE-RELATED COMPOUND FOR PROPHYLAXIS AND TREATMENT OF OSTEOPOROSIS, ARTHRITIS AND HERINATED INTERVERTEBRAL DISC, PHARMACEUTICAL COMPOSITION COMPRISING THE SAME COMPOUND AS ACTIVE INGREDIENT AND METHOD FOR PRODUCING THE SAME COMPOUND

摘要

PROBLEM TO BE SOLVED: To carry out treatment or prophylaxis of osteopathy such as osteoporosis or rheumatic arthrithis. SOLUTION: This pharmaceutical preparation for treatment and/or prophylaxis of osteoporosis, arthritis or herinated intervertebral discs is characterized as comprising a compound represented by the following structural formula (I) (R1 is hydrogen atom or a lower alkyl group; and R2 is hydrogen atom or cinnamoyl group) as an active ingredient.