Structural Elucidation and Complete NMR Spectral Assignments of Monascus Monacolin Analogs.

IF 1.9 3区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Magnetic Resonance in Chemistry Pub Date : 2024-11-05 DOI:10.1002/mrc.5489

Jiachen Liu, Qingjiang Xu, Xin Wang, Ronghua Pan, Lizhong Zheng, Yonghong Zhang, Xiaoya Shang, Nan Wang

引用次数: 0

Abstract

One new monacolin analog, monacolin V (1), together with two new monacolin-like natural products, 6-hydroxyl monacolin P (2) and 3-keto monacolin S (3), were isolated from the ethyl acetate portion of red yeast rice ethanol extract. Their structures were identified by HRESIMS and NMR experiments, and the complete assignments of ¹H and ¹³C NMR data for three compounds were obtained by the aid of HSQC, HMBC, ¹H-¹H COSY, and NOESY data. This is the first time that the NMR data of compounds 2 and 3 have been fully assigned.

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Monascus Monacolin 类似物的结构阐释和完整 NMR 光谱分配。

从红曲米乙醇提取物的乙酸乙酯部分中分离出了一种新的独活素类似物--独活素 V（1），以及两种新的独活素类天然产物--6-羟基独活素 P（2）和 3-酮独活素 S（3）。借助 HSQC、HMBC、1H-1H COSY 和 NOESY 数据，对三种化合物的 1H 和 13C NMR 数据进行了完整的分配。这是首次对化合物 2 和 3 的核磁共振数据进行完整的赋值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Magnetic Resonance in Chemistry 化学-光谱学

CiteScore

4.70

自引率

10.00%

发文量

审稿时长

1 months

期刊介绍： MRC is devoted to the rapid publication of papers which are concerned with the development of magnetic resonance techniques, or in which the application of such techniques plays a pivotal part. Contributions from scientists working in all areas of NMR, ESR and NQR are invited, and papers describing applications in all branches of chemistry, structural biology and materials chemistry are published. The journal is of particular interest not only to scientists working in academic research, but also those working in commercial organisations who need to keep up-to-date with the latest practical applications of magnetic resonance techniques.