| abstract |
A novel platinum (II) complex represented by general formula (A), wherein R₁ represents C₁ to C₅ lower hydrocarbyl, R₂ and R₃ represents each hydrogen or C₁ to C₃ lower hydrocarbyl, and the configuration of the 1,2-diaminocyclohexane ring is cis, trans-l- or trans-d-. The said complex is useful as a drug for treating malignant tumor because it has a high antitumor activity and a low toxicity. |