Phytochemistry p. 829 - 832 (1988)
Update date:2022-09-26
Topics:
Lundgren, Lennart N.
Theander, Olof
Key Word Index-Pinus sylvestris; Pinaceae; cis- and trans-dihydroflavonol glycosides; flavanone glucoside; dihydroquercetin; dihydromyricetin; eriodictyol cis-trans isomerism; chemotypes. (-)-cis-2,3-Dihydroquercetin (presumably as the 3'-O-β-D-glucopyranoside); the 3'-O-D-glucopyranosides of (+)-trans-2,3-dihydroquercetin, dihydroquercetin, dihydromyricetin and eriodictyol; (+)-catechin and (+)-gallocatechin have been isolated from the needles of Pinus sylvestris.The dihydroquercetin aglycones interconvert in methanolic solution.Two chemotypes of Pinus sylvestris can be distinguished on the basis of their dihydroquercetin , dihydromyricetin and eriodictyol contents.
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