Four new glucosides from the aerial parts of Equisetum sylvaticum

AbstractTwo previously undescribed megastigmane glucosides, (3S)-3-hydroxy-4-oxo-7,8-dihydro- β-ionone-3-O- β-d-glucopyranoside (1), (3S)-3-hydroxy-4-oxo- β-ionone-3-O- β-d-glucopyranoside (2), an apocarotenoid glucoside named equiseoside A (3) and an unusual aromatic compound with a glucose-fused skeleton named equiseoside B (4), together with 35 known compounds (5–39) were isolated from the aerial parts ofEquisetum sylvaticum. The structures of these compounds were elucidated by spectroscopic methods, including 1D and 2D NMR, IR, CD, and HR –MS.Graphical abstract
Source: Journal of Natural Medicines - Category: Drugs & Pharmacology Source Type: research