148031-68-9Relevant academic research and scientific papers
Structures of three new acylated flavonol glycosides from Astragalus complanatus R. Br.
Cui,Nakamura,Kinjo,Nohara
, p. 1943 - 1945 (1992)
Three new acylated flavonol glycosides (1-3) were isolated from Astragali Semen, seeds of Astragalus complanatus R. Br. (Leguminosae). The structures of 1, 2 and 3 were elucidated as 3-O-β-D-glucopyranosyl-4'-O-(3'''-O-dihydrophaseoyl-β-D-glucopyranos yl) rhamnocitrin, 3-O-[5'''-O-p-coumaroyl-β-D-apiofuranosyl(1''' → 2'')-β-D-glucopyranosyl] rhamnocitrin and 3-O-[5'''-O-feruloyl-β-D-apiofuranosyl(1''' → 2'')-β-D-glucopyranosyl] rhamnocitrin, respectively.
Chemical constituents of Astragali Semen
Cui,Nakamura,Kinjo,Nohara
, p. 178 - 182 (1993)
Study on the constituents of Astragali Semen, the seeds of Astragalus complanatus R. BR. (Leguminosae), led to the identification of nine known flavonoids (1, 4, 6-12) and characterization of three new flavonol glycosides (2, 3, 5) as rhamnocitrin 3-O-β-D-apiofuranosyl(1→2)-β-D-glucopyranoside, 3-O-β-D-apiofuranosyl(1→2)-β-D-glucopyranosyl rhamnocitrin 4'-O-β-D-glucopyranoside and 3-O-β-D-apiofuranosyl(1→2)-β-D-glucopyranosyl kaempferol 4'-O-β-D-glucopyranoside, respectively. The occurrence of methyl dihydrophaseate (13), roseoside (14), blumenol C glucoside (15), (±)-3-oxo-α-ionyl glucoside (16a, 16b), tuberonic acid glucoside (17), benzylalcohol-O-α-L-arabiopyranosyl(1→6)β-D-glucopyranoside (18), piceid (19) and deoxyrhaponticin (20) were also disclosed.
