METAL COMPLEX COMPOUND, CANCER THERAPEUTIC COMPOSITION COMPRISING THE METAL COMPLEX COMPOUND AS ACTIVE INGREDIENT, AND INTERMEDIATE FOR PRODUCTION OF THE METAL COMPLEX COMPOUND

摘要

Disclosed are: a metal complex compound which has a high bone adsorption property or cell proliferation inhibition property and is highly effective for the treatment of a metastatic cancer to bone or a primary cancer thereof; a cancer therapeutic composition comprising the metal complex compound or a physiologically acceptable salt thereof as an active ingredient; and an intermediate for the production of the metal complex compound. Specifically disclosed are: a metal complex compound represented by the general formula (1); a cancer therapeutic composition comprising the metal complex compound as an active ingredient; and an intermediate forthe production of the metal complex compound. (1) wherein R1's independently represent an alkyl group having 1 to 10 carbon atoms which may have a branch or a substituent, or a cyclic group having 3 to 30 carbon atoms which may have a substituent; and X represents CHR2, an oxygen atom or NR5.