Dimethylchromene rotenoids from Tephrosia candida

The hexane and ethyl acetate extracts of roots of Tephrosia candida afforded a new rotenoid, 12a-hydroxy-β-toxicarol, together with a series of known ones, identified as: deguelin, α-toxicarol, tephrosin, 6a,12a-dehydrodeguelin, 12a-hydroxy-α-toxicarol, 6a,12a-dehydro-α-toxicarol and 6a,12a-dehydro-...

Full description

Saved in:
Bibliographic Details
Published in:Phytochemistry (Oxford) 1997-11, Vol.46 (6), p.1081-1085
Main Authors: Andrei, Cesar C., Vieira, Paulo C., Fernandes, João B., da Silva, M.Fátima das G.F., Rodrigues^Fo, Edson
Format: Article
Language:English
Subjects:
Biological and medical sciences
Chemical constitution
Fundamental and applied biological sciences. Psychology
Plant physiology and development
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The hexane and ethyl acetate extracts of roots of Tephrosia candida afforded a new rotenoid, 12a-hydroxy-β-toxicarol, together with a series of known ones, identified as: deguelin, α-toxicarol, tephrosin, 6a,12a-dehydrodeguelin, 12a-hydroxy-α-toxicarol, 6a,12a-dehydro-α-toxicarol and 6a,12a-dehydro-β-toxicarol. The possibility of four of these rotenoids to be linear or angular is discussed on the basis of HMBC experiments. Angular rotenoids are very common, however the linear are restricted, and to the best of our knowledge only two linear dimethylchromene rotenoids are described in the literature.
ISSN:0031-9422
1873-3700
DOI:10.1016/S0031-9422(97)00405-6