Synthesis of 2"-amino-2"-deoxyarbekacin and its analogs having potent activity against methicillin-resistant Staphylococcus aureus.
作者:SHINICHI KONDO、YOKO IKEDA、DAISHIRO IKEDA、TOMIO TAKEUCHI、TAKAYUKI USUI、MIYUKI ISHII、TOSHIAKI KUDO、SHUICHI GOMI、SEUI SHIBAHARA
DOI:10.7164/antibiotics.47.821
日期:——
Based on our studies on the enzymatic modifications of arbekacin by methicillin-resistant Staphylococcus aureus (MRSA), replacement of the 2"-hydroxyl group by an amino group in arbekacin was designed to synthesize derivatives that would be active against MRSA. 2"-Amino-2"-deoxyarbekacin and five analogs were synthesized starting from dibekacin. Among them, 2"-amino-2"-deoxyarbekacin and the 5-epiamino analog showed excellent antibacterial activities against not only MRSA but also Gram-negative bacteria including Pseudomonas, and lower toxicities than arbekacin.
根据我们对耐甲氧西林金黄色葡萄球菌(MRSA)对阿贝卡信酶修饰的研究,设计了将阿贝卡信的2"-羟基替换为氨基,以合成对MRSA具有活性的衍生物。从二贝卡信出发合成了2"-氨基-2"-脱氧阿贝卡信及五个类似物。其中,2"-氨基-2"-脱氧阿贝卡信和5-表氨基类似物对MRSA及包括铜绿假单胞菌在内的革兰氏阴性细菌表现出优异的抗菌活性,并且其毒性低于阿贝卡信。