Sesquiterpenes lactones and flavonoids from Eremanthus argenteus (Asteraceae).
Two new sesquiterpene lactones 8alpha-(2',3'-dihydroxy-2'-methylbutanoyl)-15-desoxygoyazensolide and 16alpha-(1',2'-dihydroxy-1'-methylpropyl)-eremantholide have been identified as constituents of Eremanthus argenteus aerial parts. In addition, two known sesquiterpene lactones and three flavonoids were isolated. Their structures were established on the basis of spectroscopic and spectrometric data.
Department de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-901, Brazil.
Humberto Takeshi
HT
Sakamoto
Eugênio Paceli
EP
Laudares
Antônio Eduardo Miller
AE
Crotti
Norberto Peporine
NP
Lopes
Walter
W
Vichnewski
João Luis Callegari
JL
Lopes
Vladimir Constantino Gomes
VC
Heleno
D019659:Asteraceae / Q000737:chemistry*; D001938:Brazil; D005591:Chemical Fractionation; D002845:Chromatography; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D007783:Lactones / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D035261:Plant Components, Aerial / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification*; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*
D005419:Flavonoids; D007783:Lactones; D010936:Plant Extracts; D012717:Sesquiterpenes