complexes exhibit good antiproliferative activity, with IC50 values in the low micromolar range. Several structural modifications such as in the type of phosphine, number of metal atoms and amino acid (type, stereochemistry and functionalisation) were carried out in order to establish the structure–activity relationship in this family of complexes, which has led to the design of new and more potent cytotoxic
complex [Au(SpyCOOH)(PPh3)], which contains nicotinicacid thiolate, with several aminoacid esters such as glycine methyl ester or the enantiomerically pure l isomers of alanine methyl ester, phenylalanine methyl ester, valine methyl ester, methionine methyl ester, and proline methyl ester produces the gold(I) derivatives with the new thiolate containing aminoacid ester ligands [AuSpyCONHCH(R)COOMe}(PPh3)]
Synthesis and Structural Characterization of Silver(I) and Gold(I) Complexes with 2-Mercaptonicotinic Acid (H<sub>2</sub>mna) and Triphenylphosphine Ligands, and Their Antimicrobial Activities. Crystal Structures of Monomeric, 3- and 4-Coordinate Silver(I) Complexes [Ag(Hmna)(PPh<sub>3</sub>)<sub>2</sub>] and [Ag(Hmna)(PPh<sub>3</sub>)<sub>3</sub>] in the Solid State
作者:Kenji Nomiya、Ryusuke Noguchi、Takaye Shigeta、Yoshihiro Kondoh、Kazuhiro Tsuda、Katsunori Ohsawa、Noriko Chikaraishi-Kasuga、Munehiro Oda
DOI:10.1246/bcsj.73.1143
日期:2000.5
Two types of silver(I)-triphenylphosphine complexes with 2-mercaptonicotinic acid (H2mna) were prepared as [Ag(Hmna)(PPh3)n] (1, n = 2; 2, n = 3); their crystal structures determined by single-crystal X-ray diffraction. These complexes were obtained from reactions of the precursor, [Ag(Hmna)]n, with less excess (3 equiv) and large excess (20 equiv) amounts of PPh3, respectively. Complex 1 was also obtained