[Studies on the Nepalese crude drugs. XIX. On the flavonoid and phenylethanoid constituents of the root of Scutellaria repens Buch.-Ham. ex D. Don].
From the root of Scutellaria repens Buch.-Ham ex D. Don, two new flavonoids (10, 11) and three new phenylethanoids (12-14) were isolated, together with nine known compounds. The structures of 10-14 were shown to be 5,7,2'-trihydroxy-6,8-dimethoxyflavone, O-5-hydroxy-6,8-dimethoxyflavone-7-yl beta-D-glucuronopyranoside, O-2-(3-hydroxy-4-methoxyphenyl)ethyl O-2,3-di-O-acethyl-alpha-L-rhamnopyranosyl- (1-->3)-(4-O-trans-feruloyl)-beta-D-glucopyranoside, O-2-(3-hydroxy-4-methoxyphenyl)ethyl O-alpha-L-rhamnopyranosyl-(1-->3)-(4-O-cis-feruloyl)-beta-D-glu cop yranoside and O-2-(3-hydroxy-4-methoxyphenyl)-ethyl O-2,3-di-O-acethyl-alpha-L-rhamnopyranosyl- (1-->3)-(4-O-cis-feruloyl)-beta-D- glucopyranoside, respectively, on the basis of the chemical and spectral data.
Matsuura
Y
Y
Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa, Japan.
Miyaichi
Y
Y
Tomimori
T
T
D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D008968:Molecular Conformation; D009390:Nepal; D010626:Phenylethyl Alcohol / Q000737:chemistry / Q000302:isolation & purification*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
D005419:Flavonoids; D010626:Phenylethyl Alcohol