来自柳珊瑚Junceella juncea的四种新甾体糖苷的完整氢谱和碳谱归属

Complete 1H and 13C NMR assignments of four new steroidal glycosides from a gorgonian coral Junceella juncea.

作者信息

Qi Shuhua, Zhang Si, Huang Jianshe, Xiao Zhihui, Wu Jun, Li Qingxin

机构信息

Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou, 510301 Guangdong, China.

出版信息

Magn Reson Chem. 2005 Mar;43(3):266-8. doi: 10.1002/mrc.1530.

DOI:10.1002/mrc.1530

PMID:15593238

Abstract

Four new cholest-type steroidal glycosides, junceellosides A-D, isolated from the EtOH/CH(2)Cl(2) extracts of the South China Sea gorgonian coral Junceella juncea, were identified. Complete assignments of the (1)H and (13)C NMR chemical shifts for these compounds were achieved by means of one- and two-dimensional NMR techniques, including (1)H-(1)H COSY, HSQC, HMBC and NOESY spectra.

摘要

从中国南海柳珊瑚琼枝（Junceella juncea）的乙醇/二氯甲烷提取物中分离出了四种新的胆甾型甾体糖苷，即琼枝糖苷A - D。通过一维和二维核磁共振技术，包括氢-氢化学位移相关谱（¹H-¹H COSY）、异核单量子相干谱（HSQC）、异核多键相关谱（HMBC）和核Overhauser效应谱（NOESY），完成了这些化合物的¹H和¹³C核磁共振化学位移的全归属。