Pathogenic Gram-positive bacteria are highly sensitive to triphenylphosphanegold(O-alkylthiocarbamates), Ph3PAu[SC(OR)=N(p-tolyl)] (R = Me, Et and iPr)
作者:Chien Ing Yeo、Jiun-Horng Sim、Chai-Hoon Khoo、Zheng-Jie Goh、Kok-Pian Ang、Yoke-Kqueen Cheah、Zainal Abidin Fairuz、Siti Nadiah Binti Abdul Halim、Seik Weng Ng、Hoi-Ling Seng、Edward R. T. Tiekink
DOI:10.1007/s13404-013-0091-z
日期:2013.9
The phosphanegold(I) thiocarbamides, Ph3PAuSC(OR)=NC6H4Me-4} for R = Me (1), Et (2) and iPr (3), have been shown to have essentially linear gold atom coordination geometries defined by phosphane-P and thiolate-S atoms, and exhibit minimum inhibitory concentration (MIC) values in the range of 1–37 μg/ml against four Gram-positive bacteria, namely Bacillus cereus, Enterococcus faecalis, Enterococcus faecium and Staphylococcus aureus; compounds 1–3 are less potent against a broad panel of 16 Gram-negative bacteria. As the minimum bactericidal concentration values were quite similar to the MIC values, compounds 1–3 are effective bactericidal agents. The specific action against the four Gram-positive bacteria suggests they function by inhibition of peptidoglycan synthesis.
磷烷金(I)硫代氨基甲酸酯 Ph3PAuSC(OR)=NC6H4Me-4} 的 R = Me (1)、Et (2) 和 iPr (3),已被证明具有由磷烷-P 原子和硫醇-S 原子定义的基本线性金原子配位几何结构,对四种革兰氏阳性细菌(即蜡样芽孢杆菌、粪肠球菌和金黄色葡萄球菌)的最小抑菌浓度 (MIC) 值范围为 1-37 .μg/ml;微克/毫升的范围内,对四种革兰氏阳性菌,即蜡样芽孢杆菌、粪肠球菌、粪肠球菌和金黄色葡萄球菌表现出最低抑菌浓度(MIC);化合物 1-3 对 16 种革兰氏阴性菌的作用较弱。由于最低杀菌浓度值与 MIC 值相当接近,因此化合物 1-3 是有效的杀菌剂。对四种革兰氏阳性细菌的特异性作用表明,它们是通过抑制肽聚糖的合成来发挥作用的。