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Structure elucidation and NMR assignments of an unusual aromatic monacolin analog from Monascus purpureus ‐fermented rice
Author(s) -
Liu MingTao,
Luan Na,
Li JinJie,
Huang Xiao,
Wang YeFeng,
Wang ALi,
Shang XiaoYa
Publication year - 2012
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.3851
Subject(s) - monascus purpureus , chemistry , monascus , heteronuclear single quantum coherence spectroscopy , two dimensional nuclear magnetic resonance spectroscopy , circular dichroism , fermentation , stereochemistry , proton nmr , carbon 13 nmr , chemical structure , side chain , organic chemistry , polymer
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.