Abstract The synthesis and biological activities of the platinum complexes of 2- aminomethylaziridine, 2-aminomethylazetidine, 2-aminomethylpyrrolidine, and 2- aminomethylpiperidine as carrier ligands are described. The platinum complexes of 2- aminomethylazetidine and 2-aminomethylpyrrolidine are significantly effective against murine tumors. In particular, 2-aminomethylazetidine (1, 1-cyclobutanedicarboxylato) ...