New spirorotenoids from Tephrosia candida.
The ethyl acetate extract of roots of Tephrosia candida afforded three new spirorotenoids belonging to a new class of spirocompounds, named tephrospirolactone, tephrospiroketone I, and tephrospiroketone II. The structures of these compounds were determined mainly based on spectral analysis. The only known spirorotenoid described in the literature is amorphispironone, isolated from Amorpha fruticosa.
Departamento de Química, Universidade Federal de Londrina, PR, Brazil.
Cesar C
CC
Andrei
Paulo C
PC
Vieira
João B
JB
Fernandes
M Fátima das G F
MF
da Silva
Edson
E
Rodrigues Fo
D000085:Acetates; D002867:Chromones / Q000737:chemistry* / Q000302:isolation & purification; D007887:Fabaceae / Q000737:chemistry*; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D013141:Spiro Compounds / Q000737:chemistry* / Q000302:isolation & purification
D000085:Acetates; D002867:Chromones; D010936:Plant Extracts; D013141:Spiro Compounds; C007650:ethyl acetate