Venturicidin C, a new 20-membered macrolide produced by Streptomyces sp. TS-2-2.

Venturicidin C, a new 20-membered macrolide produced by Streptomyces sp. TS-2-2.
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DOI:
10.1038/ja.2013.113
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发表时间:
2014-03
期刊:
The Journal of antibiotics
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从阿巴拉契亚链霉菌TS-2-2的粗提物中分离得到一个新的20元大环内酯类化合物Venturicidin C(1)和已知的Venturicidin A(2)、B(3)。此外,还分离和鉴定了9种其它已知化合物,即诺卡胺素、脱羟基诺卡胺素、脱亚甲基诺卡胺素、铁氧胺E(FOE)、腺苷、核黄素、环(d)-反式-4-OH-Pro-(d)-Phe、环(d)-Pro-(d)-Phe和N-(2-苯乙基)-乙酰胺。通过NMR和HR-MS谱数据的累积分析,确定了新的大环内酯1的结构。本报告还首次提供了已知venturicidin A(2)和B(3)的完整NMR归属。Venturicidins A-C不抑制A549肺癌细胞系的增殖,但都显示出有效的抗真菌活性。
Venturicidin C (1), a new 20-membered macrolide along with the known venturicidins A (2) and B (3) were isolated from the crude extract of the Appalachian bacterial strain Streptomyces sp. TS-2-2. Additionally, nine other known compounds namely nocardamine, dehydroxynocardamine, desmethylenlnocardamine, ferrioxamine E (FOE), adenosine, riboflavin, cyclo(d)-trans-4-OH-Pro-(d)-Phe, cyclo(d)-Pro-(d)-Phe, and N-(2-phenylethyl)-acetamide were also isolated and identified. The structure of the new macrolide 1 was elucidated by the cumulative analyses of NMR and HR-MS spectrometry data. Complete NMR assignments for the known venturicidins A (2) and B (3) are also provided, for the first time, in this report. Venturicidins A-C did not inhibit the proliferation of A549 lung cancer cell lines but all displayed potent antifungal activity.
DOI: 10.1016/0005-2728(85)90254-3
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