Moromycins A and B, isolation and structure elucidation of C-glycosylangucycline-type antibiotics from Streptomyces sp. KY002.

Moromycins A and B, isolation and structure elucidation of C-glycosylangucycline-type antibiotics from Streptomyces sp. KY002.
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DOI:
10.1021/np800281f
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发表时间:
2008-09
影响因子:
5.1
通讯作者:
Rohr, Juergen
Rohr, Juergen
中科院分区:
生物学2区
文献类型:
--
作者:
Abdelfattah, Mohamed S.;Kharel, Madan Kumar;Hitron, John Andrew;Baig, Irfan;Rohr, Juergen

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从陆生链霉菌培养液的乙酸乙酯提取物中分离出安古环素类的两种新型抗癌抗生素莫霉素 A 和 B (1, 2),以及已知的微生物代谢物沙夸霉素 B (3) 和弗里达霉素 D (4)。 KY002。该结构由四曲霉素核心和各种 C-和 O-糖苷连接的脱氧糖组成。通过一维和二维核磁共振以及质谱分析阐明了新的次级代谢物的化学结构。 Moromycin B (2) 对 H-460 人肺癌细胞和 MCF-7 人乳腺癌细胞表现出显着的细胞毒性。
Two new anticancer antibiotics of the angucycline class, moromycins A and B (1, 2), along with the known microbial metabolites saquayamycin B (3) and fridamycin D (4) were isolated from the ethyl acetate extract of a culture broth of the terrestrial Streptomyces sp. KY002. The structures consist of a tetrangomycin core, and various C- and O-glycosidically linked deoxysugars. The chemical structures of the new secondary metabolites were elucidated by 1D and 2D NMR and by mass spectrometry. Moromycin B (2) showed significant cytotoxicity against H-460 human lung cancer and MCF-7 human breast cancer cells.
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