Phenolic glycosides from Magnolia figo
Chutima Srinroch, Poolsak Sahakitpichan, Nitirat Chimnoi, Somsak Ruchirawat, Tripetch Kanchanapoom
Three new phenolic glycosides were isolated from the leaves and twigs of Magnolia figo, and identitified to be 3,4-dihydroxy-β-phenylethoxyl-O-[β-D-glucopyranosyl-(1"→2')-α-L-rhamnopyranosyl-(1'"→3')-(4'-O-trans-caffeoyl)-β-D-glucopyranosyl-(1'""→6')]-β-D-glucopyranoside (champikhaekoside, 8), 4-hydroxybenzyl O-β-D-apiofuranosyl-(1"→2')-[β-D-glucopyranosyl-(1'"→3')]-β-D-glucopyranoside (17) and (+)-(7S,8S)-guaiacylglycerol 8-(6'-O-vanilloyl)-O-β-D-glucopyranoside (26). Additionally, 41 known compounds were identified. The structure elucidation of these compounds was based on analyses of physical and spectroscopic data including 1D and 2D NMR experiments.
Circular dichroism, Stereochemistry, Pharmaceutical, Natural products