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2. Structure elucidation and NMR assignments of an unusual aromatic monacolin analog fromMonascus purpureus-fermented rice

Author

Xiao-Ya Shang, Xiao Huang, Ming-Tao Liu, Jin-Jie Li, Luan Na, A-Li Wang, and Ye-Feng Wang

Subjects
Circular dichroism, biology, Chemistry, Stereochemistry, Absolute configuration, General Chemistry, Carbon-13 NMR, biology.organism_classification, Monascus, Proton NMR, Organic chemistry, General Materials Science, Monascus purpureus, Two-dimensional nuclear magnetic resonance spectroscopy, Heteronuclear single quantum coherence spectroscopy
Abstract

One unusual aromatic monacolin analog, aromonacolin A (1), was isolated from the ethanolic extract of Monascus purpureus-fermented rice. Its structure was elucidated by extensive spectroscopic (HRESIMS, (1)H NMR, (13)C NMR, HSQC, HMBC, and NOESY) and chemical methods. The absolute configuration of the C-6 secondary alcohol was deduced via the circular dichroism data of the in situ formed [Rh(2)(OCOCF(3))(4)] complex.

Published
2012
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3. Structure elucidation and complete NMR spectral assignment of an unusual aromatic monacolin analog from Monascus purpureus -fermented rice

Author

Shuai Li, Mingtao Liu, Zong-Lian Jin, Xiao-Ya Shang, Lingling Li, Jin-Jie Li, and Luan Na

Subjects
biology, Chemistry, Stereochemistry, General Chemistry, Carbon-13 NMR, biology.organism_classification, Mass spectrometry, Monascus, Proton NMR, General Materials Science, Monascus purpureus, Fermentation, Two-dimensional nuclear magnetic resonance spectroscopy, Heteronuclear single quantum coherence spectroscopy
Abstract

One unusual aromatic monacolin analog, monacophenyl, was isolated from the ethanolic extract of Monascus purpureus-fermented rice. Its structure was completely and unambiguously assigned by one- and two-dimensional NMR techniques (1H NMR, 13C NMR, HSQC, HMBC and NOESY) and high-resolution ESI-MS spectrometry. Copyright © 2011 John Wiley & Sons, Ltd.

Published
2011
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