Novel platinum complexes.

摘要

A platinum (II) complex represented by the general formula: <CHEM> [wherein A's are each ammonia or two A's jointly represent 1,2-diaminocyclohexane, 1-amino-1-aminomethylcyclohexane or 1,4-diamino-2-methylbutane; and B's may be same or different and represent <CHEM> (wherein m is 0, 1 or 2; n is 0 or 1; R1 is a C3-C6 alkyl group substituted with one or two hydroxyl groups) or two B's jointly represent <CHEM> (wherein R2 is a C2-C5 alkyl group substituted with one hydroxyl group)]. These platinum (II) complexes have high potencies for use as an antitumor agent.