Structure determination of two new indole‐diterpenoids from  Penicillium  sp. CM‐7 by NMR spectroscopy | Zendy

Zhang YuHong | Zendy; Huang ShengDong | Zendy; Pan HuaQi | Zendy; Bian XiQing | Zendy; Wang ZaiYing | Zendy; Han AiHong | Zendy; Bai Jiao | Zendy

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Structure determination of two new indole‐diterpenoids from Penicillium sp. CM‐7 by NMR spectroscopy

Author(s) -

Zhang YuHong,

Huang ShengDong,

Pan HuaQi,

Bian XiQing,

Wang ZaiYing,

Han AiHong,

Bai Jiao

Publication year - 2014

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.4065

Subject(s) - chemistry , circular dichroism , two dimensional nuclear magnetic resonance spectroscopy , indole test , nuclear magnetic resonance spectroscopy , stereochemistry , spectroscopy , penicillium , physics , food science , quantum mechanics

Two new indole‐diterpenoids 4b‐deoxy‐1′‐ O ‐acetylpaxilline (1) and 4b‐deoxypenijanthine A (2) were isolated from the fermentation broth and the mycelia of the soil fungus Penicillium sp. CM‐7, along with three known structurally related compounds, 1′‐ O ‐acetylpaxilline (3), paspaline (4) and 3‐deoxo‐4b‐deoxypaxilline (5). The structures of compounds 1 and 2 were elucidated by extensive spectroscopic methods, especially 2D NMR, and their absolute configurations were suggested on the basis of the circular dichroism spectral analysis and the NOESY data. Copyright © 2014 John Wiley & Sons, Ltd.

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