Flavonoids from seeds of Camellia semiserrata Chi. and their estrogenic activity.
Two new flavonol glycosides and three known flavonoids were isolated from seeds of Camellia semiserrata Chi. The structures of these new flavonol glycosides were established as kaempferol 3-O-[(2'''''',3'''''',4''''''-triacetyl)-alpha-L-rhamnopyranosyl(1-->3)(2'''',4''''-diacetyl)-alpha-L-rhamnopyranosyl (1-->6)-beta-D-glucopyranoside] and kaempferol 3-O-[(3'''''',4''''''-diacetyl)-alpha-L-rhamnopyranosyl(1-->3)(2'''',4''''-diacetyl)-alpha-L-rhamnopyranosyl(1-->6)-beta-D-glucopyranoside] by spectroscopic methods. The estrogenic activity of these compounds was investigated by a recombinant yeast screening assay.
Wu
Xiaojuan
X
College of Bioengineering, Dalian University, Dalian, Japan.
Tang
Ling
L
Lin
Hongjing
H
Wang
Yongqi
Y
Feng
Baomin
B
D028244:Camellia / Q000737:chemistry*; D004967:Estrogens / Q000378:metabolism*; D005419:Flavonoids / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry; D020128:Inhibitory Concentration 50; D044949:Kaempferols; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D011994:Recombinant Proteins / Q000378:metabolism; D029701:Saccharomyces cerevisiae Proteins / Q000235:genetics / Q000378:metabolism; D012639:Seeds / Q000737:chemistry*
D004967:Estrogens; D005419:Flavonoids; D006027:Glycosides; D044949:Kaempferols; D010936:Plant Extracts; D011994:Recombinant Proteins; D029701:Saccharomyces cerevisiae Proteins; C006552:kaempferol