摘要
目的 研究枇杷花的化学成分。方法 通过化学方法和波谱分析 (IR,MS,1 HNMR,1 3CNMR)。从枇杷〔Eriobotrya japonica(Thunb) L indl〕的花中经乙醇提取分离三萜皂甙元类成分。结果 共获得 4个三萜皂甙元类成分 ,并确定它们的化学结构分别为 : 齐墩果酸 (oleanolic acid) , 熊果酸 (ursolic acid) , 2 α,3α,19α-三羟基熊果 - 5 ,12 -二烯 - 2 8-酸 (2 α,3α,19α- trihydroxyurs- 5 ,12 - dien- 2 8- acid) , 2 β,3β,2 3α-三羟基齐墩果 - 12 -烯 - 2 8-酸(2 β,3β,2 3α- trihydroxyolean- 12 - en- 2 8- acid)。结论 化合物 ～
Objective To investigate the chemical composition of the flowers of Eriobotrya japonica. Methods Four constituents were isolated from the ethanolic extracts of flowers of Eriobotrya japonica (Thunb) Lindl and were identified by chemical methods and spectroscopic (IR, MS, 1HNMR, 13 CNMR). Results The structures were identified as: Oleanolic acid (Ⅰ),Ursolic acid (Ⅱ) , 2α,3α,19α Trihydroxyurs 5,12 dien 28 acid (Ⅲ) and 2β, 3β, 23α Trihydroxyolean 12 en 28 acid (Ⅳ). Conclusion The compounds Ⅰ, Ⅱ, Ⅲ and Ⅳ were obtained from the flowers of Eriobotrya japonica for the first time.
出处
《华西医科大学学报》
CAS
CSCD
北大核心
2001年第2期283-285,共3页
Journal of West China University of Medical Sciences
关键词
枇杷花
三萜皂甙
波谱分析
化学成分
Flowers of Eriobotrya japonica Triterpenoidal saponins Spectroscopic analysis
