对多穗阿芳榄种子中环A、B开裂柠檬苦素类化合物的¹H和¹³C NMR数据进行全归属。

Complete assignments of 1H and 13C NMR data for rings A,B-seco limonoids from the seed of Aphanamixis polystachya.

作者信息

Zhang Huaping, Chen Feng, Wang Xi, Wu Dagang, Chen Qing

机构信息

Department of Food Science and Human Nutrition, Clemson University, Clemson, SC 29634, USA.

出版信息

Magn Reson Chem. 2007 Feb;45(2):189-92. doi: 10.1002/mrc.1937.

DOI:10.1002/mrc.1937

PMID:17146802

Abstract

Seven rings A,B-seco limonoids 1-7 were isolated from the EtOH extract of the seed of Aphanamixis polystachya. Their structures were identified as rohituka-7 (1), dregeana-1 (2), rohituka-15 (3), Tr-B (4), rohituka-3 (5), rohituka-5 (6), and rohituka-14 (7) by MS and NMR spectroscopy. The complete assignment of proton and carbon signals was achieved by 1D and 2D NMR experiments including DEPT, HSQC, 1H--1H COSY, HMBC, and NOESY.

摘要

从多穗阿芳枝种子的乙醇提取物中分离出7种A、B-断环柠檬苦素类化合物1-7。通过质谱和核磁共振光谱将它们的结构鉴定为洛希图卡-7（1）、德雷吉纳-1（2）、洛希图卡-15（3）、Tr-B（4）、洛希图卡-3（5）、洛希图卡-5（6）和洛希图卡-14（7）。通过包括DEPT、HSQC、1H-1H COSY、HMBC和NOESY在内的一维和二维核磁共振实验完成了质子和碳信号的全归属。