Targeted Isolation of a Cytotoxic Cyclic Hexadepsipeptide from the Mesophotic Zone Sponge-Associated Fungus Cymostachys sp. NBUF082

Autor: Ye Yuan, Te Li, Tingting Wang, C. Benjamin Naman, Jing Ye, Xingxin Wu, J. Enrico H. Lazaro, Xiaojun Yan, Shan He
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Marine Drugs, Vol 19, Iss 10, p 565 (2021)
Druh dokumentu: article
ISSN: 1660-3397
DOI: 10.3390/md19100565
Popis: LC-MS/MS-based molecular networking facilitated the targeted isolation of a new cyclic hexadepsipeptide, cymodepsipeptide (1), and two known analogues, RF–2691A (2) and RF–2691B (3), from the fungus Cymostachys sp. NBUF082 that was derived from a mesophotic zone Aaptos sponge collected near Apo Island. The constitution and configuration of 1 was elucidated through 1D and 2D NMR-spectroscopy, high resolution mass-spectrometry, and chemical degradations including Marfey’s analysis and chiral HPLC. It was observed that 1 was moderately cytotoxic against CCRF-CEM human acute lymphocytic leukemia cells in vitro with the IC50 value of 9.2 ± 1.1 μM.
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