Studies on the Triterpenoidal Saponins from Flowers of Eriobotrya japonica
10.3969/j.issn.1672-173X.2001.02.037
- VernacularTitle:枇杷花三萜皂甙成分的研究
- Author:
Li CHENG
1
;
Yan LIU
;
Lingya CHEN
;
Juan LUO
Author Information
1. School of Pharmacy, WCUMS
- From:
Journal of Sichuan University (Medical Sciences)
2001;32(2):283-285
- CountryChina
- Language:Chinese
-
Abstract:
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,13CNMR). 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.
