Antimycins A(19) and A(20), two new antimycins produced by marine actinomycete Streptomyces antibioticus H74-18
文献类型: 外文期刊
第一作者: Xu, Lin-Ya
作者: Xu, Lin-Ya;Quan, Xue-Sheng;Zhou, Guang-Xiong;Jiang, Ren-Wang;Yao, Xin-Sheng;Wang, Chen;Sheng, Hui-Fang;Lin, Bi-Run
作者机构:
关键词: actinomycete;antifungal activity;antimycins A(19) and A(20);Streptomyces antibioticus;X-ray diffraction
期刊名称:JOURNAL OF ANTIBIOTICS ( 影响因子:2.649; 五年影响因子:2.772 )
ISSN: 0021-8820
年卷期: 2011 年 64 卷 10 期
页码:
收录情况: SCI
摘要: Two new antimycin antibiotics, that is antimycins A(19) (1) and A(20) (2), were isolated from a cultured broth of marine actinomycete Streptomyces antibioticus H74-18 together with antimycins A(1a) (3a) and A(1b) (3b), A(2a) (4), A(3a) (5a) and A(3b) (5b). Their structures were determined by spectroscopic methods in combination with X-ray diffraction. Antimycin A(19) possessed a chiral acyl chain and an alkyl branch. The absolute configuration of chiral acyl chain in 1 was determined by X-ray diffraction analysis. Antimycin A(20) (2) has the shortest and simplest acetoxy acyl chain in the antimycins family. All the antimycins (1-5) showed potential antifungal activities against Candida albicans with MIC of about 5-10 mu g ml(-1). The Journal of Antibiotics (2011) 64, 661-665; doi:10.1038/ja.2011.65; published online 17 August 2011
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