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Aspergoterpenins A?D: Four New Antimicrobial Bisabolane Sesquiterpenoid Derivatives from an Endophytic Fungus Aspergillus versicolor.


ABSTRACT: Aspergoterpenins A?D (1?4), four new bisabolane sesquiterpenoid derivatives, were obtained from the endophytic fungus, Aspergillus versicolor, together with eight known compounds (5?12), and their structures were elucidated by a comprehensive analysis of their NMR (Nuclear Magnetic Resonance), MS (Mass Spectrum) and CD (Circular Dichroism) spectra. Aspergoterpenin A (1) was the first example with a characteristic ketal bridged-ring part in the degraded natural bisabolane-type sesquiterpene structures. The compounds 1?12 displayed no significant activities against four cancer cell lines (A549, Caski, HepG2 and MCF-7). Further, the antimicrobial activities to Erwinia carotovora sub sp. Carotovora were evaluated, and the results showed that compounds 1?12 displayed antimicrobial activities with MIC values ranging from 15.2 to 85.2 ?g/mL.

SUBMITTER: Guo ZY 

PROVIDER: S-EPMC6100428 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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Aspergoterpenins A⁻D: Four New Antimicrobial Bisabolane Sesquiterpenoid Derivatives from an Endophytic Fungus <i>Aspergillus versicolor</i>.

Guo Zhi-Yong ZY   Tan Ming-Hui MH   Liu Cheng-Xiong CX   Lv Meng-Meng MM   Deng Zhang-Shuang ZS   Cao Fei F   Zou Kun K   Proksch Peter P  

Molecules (Basel, Switzerland) 20180528 6


Aspergoterpenins A⁻D (<b>1</b>⁻<b>4</b>), four new bisabolane sesquiterpenoid derivatives, were obtained from the endophytic fungus, <i>Aspergillus versicolor</i>, together with eight known compounds (<b>5</b>⁻<b>1</b><b>2</b>), and their structures were elucidated by a comprehensive analysis of their NMR (Nuclear Magnetic Resonance), MS (Mass Spectrum) and CD (Circular Dichroism) spectra. Aspergoterpenin A (<b>1</b>) was the first example with a characteristic ketal bridged-ring part in the deg  ...[more]

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