Aryl and triterpenic glycosides from Margyricarpus setosus.
Investigation of aerial parts of Margyricarpus setosus afforded three new aryl glycosides, beta-hydroxyphenylethyl-O-alpha-L-rhamnopyranosyl (1-->6)-beta-D-glucopyranoside, benzyl-O-alpha-L-rhamnopyranosyl (1-->6)-beta-D-glucopyranoside, 4-methoxybenzyl-O-alpha-L-rhamnopyranosyl (1-->6)-beta-D-glucopyranoside, and three new triterpene glycosides, tormentic acid 3 beta-O-beta-D-quinovopyranoside, tormentic acid 3 beta-O-beta-D-fucopyranoside and tormentic acid 3 beta-O-alpha-L-rhamnopyranoside. Twelve known compounds were also found, among them beta-hydroxy-3',4'-dimethoxyphenylethyl glucoside and beta-hydroxy-3',4'-dimethoxyphenylethyl rutinoside, which were obtained previously by partial synthesis, were isolated for the first time from a natural source. The structures of the new compounds were elucidated on the basis of chemical and spectral data.
De Tommasi
N
N
Centro Interdipartimentale di Chimica, Università di Salerno, Italy.
Rastrelli
L
L
Cumanda
J
J
Speranza
G
G
Pizza
C
C
D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D002855:Chromatography, Thin Layer; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D015394:Molecular Structure; D010946:Plants, Medicinal; D016339:Spectrometry, Mass, Fast Atom Bombardment; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
D006027:Glycosides; D014315:Triterpenes