Synthesis and antibacterial activity of novel 11,12-cyclic carbonate azithromycin 4″-O-carbamate derivatives
作者:Chenchen Ma、Zhaopeng Liu、Hualong Song、Rentao Jiang、Fawen He、Shutao Ma
DOI:10.1038/ja.2009.108
日期:2010.1
A series of novel 11,12-cyclic carbonate azithromycin 4â³-O-carbamate derivatives were designed, synthesized and evaluated for their in vitro antibacterial activities. Compounds 7b and 7d were the most effective (0.5 and 0.5âμgâmlâ1) against two strains of erythromycin-resistant Streptococcus pneumoniae whose resistance was encoded by the erm gene and the erm and mef genes, respectively. Compounds 7a, 7e and 7g showed significantly potent activity against erythromycin-susceptible strains such as Staphylococcus aureus and S. pyogenes. These results suggest that the introduction of the prolonged arylalkylcarbamoyl group to the C-4â³ position can dramatically enhance the activity against erythromycin-resistant bacteria encoded by the erm gene or the erm and mef genes.
设计、合成了系列新颖的11,12-环碳酸酯阿奇霉素4'-O-氨基甲酸酯衍生物,并评价了它们的体外抗菌活性。化合物7b和7d对两种红霉素耐药的肺炎链球菌(分别为erm基因和erm及mef基因编码的耐药性)效果最佳(0.5和0.5µg·ml-1)。化合物7a、7e和7g对红霉素敏感菌株(如金黄色葡萄球菌和酿脓链球菌)显示出显著的强大活性。这些结果表明,将延长芳基烷基氨基甲酰基引入C-4"位可显著增强对erm基因或erm和mef基因编码的红霉素耐药细菌的活性。