Metal-Based Drugs 
Volume 4 (1997), Issue 1, Pages 43-50
doi:10.1155/MBD.1997.43

Interaction of Pd(II) and Pt(II) Amino Acid Complexes With Dinucleotides

Margarita Vicens, Amparo Caubet, and Virtudes Moreno

 Departament de Quimica Inorgànica, Universitat de Barcelona, Avinguda Diagonal 647, Barcelona 08028, Spain
Received 12 February 1997; Accepted 20 February 1997

Abstract

The interaction of the dinucleotides d(ApG) and d(ApA) with [Pd(aa)Cl2], where aa = L- or D-histidine or the methyl ester of L-histidine, and with [Pt(Met)Cl2], where Met = L-methionine was studied by H1 and C13 NMR and CD measurements. In the case of the L-histidine and L-histidineOMe, the reaction with d(ApG) appeared to give the bifunctional adducts Pd(L-Histidine)N1(1)N7(2) and Pd(L-HisOMe)N1(1)N7(2), but the behavior with D-histidine suggested the formation of the monofunctional adduct Pd(D-His)N7(2). The reaction of L-histidine with d(ApA) seemed to form the bimetallic adduct (L-His)PdN7(1)N7(2)Pd(L-His). The Pt(II)-L-methionine complex in both reactions with d(ApG) and d(ApA) seemed to yield mainly adducts Pt(L-Met)N7(1)N7(2) but the existence of adducts Pt(L-Met)N1(1)N7(2) cannot be ruled out.