CHEMICAL CONSTITUENTS FROM THE ROOT OF RUBUS CHROOSEPALUS
- VernacularTitle:毛萼梅根化学成分研究
- Author:
Rong LIU
;
Lisheng DING
;
Nengyu CHEN
;
Mingkui WANG
- Publication Type:Journal Article
- From:
Acta Pharmaceutica Sinica
2001;36(1):38-41
- CountryChina
- Language:Chinese
-
Abstract:
AIM To investigate the chemical constituents of Rubus chroosepalus Focke. METHODS The methanol extracts were suspended in H2O and then extracted with EtOAc. Column chromatography was used for separation and purification, while spectral analysis was used for identification. RESULTS Seven compounds were isolated and identified as 2α,3β-dihydroxy-urs-12,19-dien-23,28-oic acid (I), 2α,3β,23-trihydroxy-urs-12,18-dien-28-oic acid (IIa), 2α,3β,23-trihydroxy-urs-12,19-dien-28-oic acid (IIb), 2α,3α-dihydroxy-urs-12,18-dien-28-oic acid (IIIa), 2α,3α-dihydroxy-urs-12,19-dien-28-oic acid (IIIb), and the acetonide of IIIa and IIIb (IVa and IVb). CONCLUSION I was found to be a new pentacyclic triterpenoid acid.
