cis‐[(4R,5R)‐4,5‐Bis­(amino­methyl)‐2,2‐di­methyl‐1,3‐dioxolane‐N,N′](malonato‐O,O′)­platinum(II), an anticancer agent

In the title compound, Pt(C₃H₂O₄)(C₇H₁₆N₂O₂)], the Pt atom is coordinated to two O and two N atoms in a square‐planar arrangement. The two independent mol­ecules, which have very similar structures, are approximately related by pseudo‐twofold screw‐axis symmetry. The six‐membered chelate ring in the leaving ligand assumes a conformation intermediate between the half‐chair and boat forms. The seven‐membered ring in the carrier ligand assumes a twist‐chair conformation and the oxolane ring assumes an envelope conformation. The crystal packing consists of extensive hydrogen‐bonding networks which form two‐dimensional molecular layers, and there are weak van der Waals interactions between these layers.