title: Synthesis, molecular structure determination, and antitumor activity of platinum(II) and palladium(II) complexes of 2-substituted benzimidazole.
abstract: The complexes of 2-aminomethyl benzimidazole, 2-(beta-aminoethyl)benzimidazole, and 2-(alpha-aminoethy-l)benzimidazole with Pt(II) and Pd(II) have been prepared. The molecular structure of the free ligands and their complexes were studied by IR and 1H NMR. It was concluded that the substituted benzimidazole derivatives behave as bidentate ligands, being bound to the metal atoms via the nitrogen of the -N = group and the amino group of the side chain of the benzimidazole ring. The metal complexes were tested for antineoplastic activity both in cultures of neoplastic cells (MEL-745, K-562, Colon 205, IMP-32, SK-N-SH) and in vivo in rodents bearing L-1210 leukemia. The antiproliferative activity of these agents was compared to that of cis-platin.
authors.affiliation: Department of Chemistry, University of Athens, Greece.
authors.forename: S
authors.initials: S
authors.lastname: Mylonas
authors.forename: A
authors.initials: A
authors.lastname: Valavanidis
authors.forename: K
authors.initials: K
authors.lastname: Dimitropoulos
authors.forename: M
authors.initials: M
authors.lastname: Polissiou
authors.forename: A S
authors.initials: AS
authors.lastname: Tsiftsoglou
authors.forename: I S
authors.initials: IS
authors.lastname: Vizirianakis
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000138:chemical synthesis*; D001562:Benzimidazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D002470:Cell Survival / Q000187:drug effects; D004353:Drug Evaluation, Preclinical; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D009374:Neoplasms, Experimental / Q000378:metabolism; D010165:Palladium; D010984:Platinum; D013055:Spectrophotometry, Infrared; D014407:Tumor Cells, Cultured / Q000187:drug effects
chemical_list: D000970:Antineoplastic Agents; D001562:Benzimidazoles; D010984:Platinum; D010165:Palladium