(+)- and (−)-actinoxocine, and actinaphthorans A–B, C-ring expansion and cleavage angucyclinones from a marine-derived Streptomyces sp.

Literature Information

Publication Date 2019-10-23
DOI 10.1039/C9QO01154D
Impact Factor 5.281
Authors

Shumin Zhang, Lu Zhang, Xinzhen Fu, Zhi Li, Lin Guo, Lijuan Kou, Ming Liu, Zeping Xie


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Abstract

(+)- and (−)-actinoxocine (1), a pair of enantiomeric C-ring expansion angucyclinones, featuring a unique epoxybenzo[f]naphtho[1,8-bc]oxocine carbon skeleton, and two unusual C-ring cleavage analogues, actinaphthorans A–B (2–3), were isolated from a marine-derived Streptomyces sp. Their structures and absolute configurations were assigned by spectroscopic analysis, X-ray diffraction and CD calculations.

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Organic Chemistry Frontiers

Organic Chemistry Frontiers
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