Bi- and tetraflavonoids from Aristolochia ridicula.
From stems of Aristolochia ridicula, two biflavones, four unusual chalcone-flavone dimers and one tetraflavonoid were isolated. The structures of the seven compounds were elucidated by spectroscopic methods.
Carneiro
F J
FJ
Instituto de Química, Universidade Estadual Paulista, Araraquara, São Paulo, Brazil.
Boralle
N
N
Silva
D H
DH
Lopes
L M
LM
D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D019684:Magnoliopsida / Q000737:chemistry*; D015394:Molecular Structure; D013057:Spectrum Analysis
D005419:Flavonoids