Phenolic constituents of Phenax angustifolius.
Fractionation of an ethanolic extract of the leaves of Phenax angustifolius has resulted in the isolation of two new lignans, 2-hydroxy-2-(3',4'-dihydroxyphenyl)methyl-3-(3' ',4' '-dimethoxyphenyl)methyl-gamma-butyrolactone (1) and 2-hydroxy-2-(4'-O-beta-D-glucopyranosyl-3'-hydroxyphenyl)methyl-3-(3' ',4' '-dimethoxyphenyl)methyl-gamma-butyrolactone (2), and three known compounds, vitexin, isovitexin, and quercetin 3-O-alpha-L-rhamnopyranoside. The structures of 1 and 2 were determined using spectroscopic methods.
Rastrelli
L
L
Dipartimento di Scienze Farmaceutiche, Università di Salerno, Invariante 11/C, 84084 Fisciano, Salerno, Italy.
De Simone
F
F
Mora
G
G
Poveda
J L
JL
Aquino
R
R
D002851:Chromatography, High Pressure Liquid; D002942:Circular Dichroism; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D017705:Lignans / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D010636:Phenols / Q000737:chemistry* / Q000302:isolation & purification; D010936:Plant Extracts / Q000032:analysis; D018515:Plant Leaves / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization
C428170:2-hydroxy-2-(3',4'-dihydroxyphenyl)methyl-3-(3'',4''-dimethoxyphenyl)methylbutyrolactone; C428171:2-hydroxy-2-(4'-O-glucopyranosyl-3'-hydroxyphenyl)methyl-3-(3'',4''-dimethoxyphenyl)methylbutyrolactone; D005960:Glucosides; D017705:Lignans; D010636:Phenols; D010936:Plant Extracts