Glycosyl flavonoids from the roots and rhizomes of Asarum longerhizomatosum.
Two new glycosyl flavonoids including a glycosyl aurone, together with six known flavonoids were isolated from the roots and rhizomes of Asarum longerhizomatosum. The structures of the two new compounds were elucidated as 4,6,4'-trihydroxy-aurone-4,6-di-O-beta-D-glucopyranoside (7, caulesauroneside) and naringenin-7,4'-di-O-beta-D-glucopyranoside (8, caulesnarinside). The six known flavonoids were identified as naringenin (1), naringenin-5-O-beta-D-glucopyranoside (2), naringenin-7-O-beta-D-glucopyranoside (3), chalcononaringenin-2'-O-beta-D-glucopyranoside (4), naringenin-5,7-di-O-beta-D-glucopyranoside (5), chalcononaringenin-2',4'-di-O-beta-D-glucopyranoside (6), respectively. This is the first report of the isolation of aurones in the family Aristolochiaceae.
Zhang
Shu-Xiang
SX
Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University, Beijing 100083, China.
Tani
Tadato
T
Yamaji
Seiichi
S
Ma
Chao-Mei
CM
Wang
Min-Chuan
MC
Cai-
Shao-Qing
SQ
Zhao
Yu-Ying
YY
D030023:Asarum; D005419:Flavonoids / Q000737:chemistry*; D006031:Glycosylation; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008517:Phytotherapy; D010936:Plant Extracts / Q000737:chemistry*; D018517:Plant Roots; D013329:Structure-Activity Relationship
D005419:Flavonoids; D010936:Plant Extracts