Saliniquinone Derivatives, Saliniquinones G−I and Heraclemycin E, from the Marine Animal-Derived Nocardiopsis aegyptia HDN19-252

Four new anthraquinone derivatives, namely saliniquinones G−I (1–3) and heraclemycin E (4), were obtained from the Antarctic marine-derived actinomycete Nocardiopsis aegyptia HDN19-252, guided by the Global Natural Products Social (GNPS) molecular networking platform. Their structures, including abs...

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Bibliographic Details
Published in:Marine Drugs
Main Authors: Zhou, Luning, Chen, Xuedong, Sun, Chunxiao, Chang, Yimin, Huang, Xiaofei, Zhu, Tianjiao, Zhang, Guojian, Che, Qian, Li, Dehai
Format: Text
Language:English
Published: MDPI 2021
Subjects:
Article
Antarctic
The Antarctic
Antarc*
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8537165/
http://www.ncbi.nlm.nih.gov/pubmed/34677474
https://doi.org/10.3390/md19100575
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Summary:Four new anthraquinone derivatives, namely saliniquinones G−I (1–3) and heraclemycin E (4), were obtained from the Antarctic marine-derived actinomycete Nocardiopsis aegyptia HDN19-252, guided by the Global Natural Products Social (GNPS) molecular networking platform. Their structures, including absolute configurations, were elucidated by extensive NMR, MS, and ECD analyses. Compounds 1 and 2 showed promising inhibitory activity against six tested bacterial strains, including methicillin-resistant coagulase-negative staphylococci (MRCNS), with MIC values ranging from 3.1 to 12.5 μM.

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