Platinum (II) complex with cyclometalating 2-phenylpyridine ligand showing high cytotoxicity against cisplatin-resistant cell. 
A platinum (II) mononuclear complex with two kinds of 2-phenylpyridine which coordinate as cyclometalated and non-chelated ligands shows high cytotoxicity against cisplatin-resistant mouse sarcoma 180 cell in comparison with its related complexes.