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Angucycline Glycosides from Mangrove-Derived Streptomycesdiastaticus subsp. SCSIO GJ056.

ABSTRACT: Nine new angucycline glycosides designated urdamycins N1?N9 (1?9), together with two known congener urdamycins A (10) and B (11), were obtained from a mangrove-derived Streptomycesdiastaticus subsp. SCSIO GJ056. The structures of new compounds were elucidated on the basis of extensive spectroscopic data analysis. The absolute configurations of 6?9 were assigned by electronic circular dichroism calculation method. Urdamycins N6 (6) and N9 (9) represent the first naturally occurring (5R, 6R)-angucycline glycosides, which are diastereomers of urdamycins N7 (7) and N8 (8), respectively.

SUBMITTER: Gui C

PROVIDER: S-EPMC6025406 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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Angucycline Glycosides from Mangrove-Derived Streptomycesdiastaticus subsp. SCSIO GJ056.

Gui Chun C Liu Yena Y Zhou Zhenbin Z Zhang Shanwen S Hu Yunfeng Y Gu Yu-Cheng YC Huang Hongbo H Ju Jianhua J

Marine drugs 20180528 6

Nine new angucycline glycosides designated urdamycins N1⁻N9 (1⁻9), together with two known congener urdamycins A (10) and B (11), were obtained from a mangrove-derived Streptomycesdiastaticus subsp. SCSIO GJ056. The structures of new compounds were elucidated on the basis of extensive spectroscopic data analysis. The absolute configurations of 6⁻9 were assigned by electronic circular dichroism calculation method. Urdamycins N6 (6) an ...[more]

PMID: 29843358

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