A New Asymmetric ent-Kauranoid Dimer from Rabdosia rubescens
10.3969/j.issn.1674-6384.2012.01.002
- Author:
Haiying LU
;
Jingyu LIANG
- Publication Type:Journal Article
- Keywords:
asymmetric ent-kauranoid dimer;
coumarin;
diterpenoid;
Rabdosia rubescens;
triterpenoid
- From:
Chinese Herbal Medicines
2012;04(1):4-7
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo study the ent-kaurane diterpenoids from Rabdosia rubescens.MethodsThe compounds were isolated by chromatographies and their structures were identified by spectral analyses.ResultsFour compounds were isolated,and they were identified as bisrubescensin E (1),2α,3α,24-trihydroxyurs-12-en-28-oic acid (2),2α,3α,24-trihydroxyurs-12,20-(30)-dien-28-oic acid (3),and 6,7-dihydroxycoumarin (4).ConclusionCompound 1 is a new asymmetric ent-kauranoid dimer.Compound 2 is isolated from the plant for the first time.Compounds 3 and 4 are isolated from the plants ofRabdosia (B1.) Hassk for the first time.
