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Neolignan and monoterpene glycosides from Magnolia henryi
- Srinroch, Chutima, Sahakitpichan, Poolsak, Chimnoi, Nitirat, Ruchirawat, Somsak, Kanchanapoom, Tripetch
- Phytochemistry letters 2019 v.29 pp. 94-97
- Magnolia, glycosides, kaempferol, leaves, lignans, monoterpenoids, nuclear magnetic resonance spectroscopy, quercetin, rutin, spectral analysis
- A new neolignan glycoside, (7R,8S)-7′-hydroxy-dihydrodehydrodiconiferyl alcohol 9-O-β-d-glucopyranoside (monthaphuoside A, 1) and a new monoterpene glycoside, (3R,6Z)-9-hydroxylinaloyl 3-O-β-d-glucopyranoside (monthaphuoside B, 2), were isolated from the leaves of Magnolia henryi along with (3R,6S)-6,7-dihydroxy-6,7-dihydrolinaloyl 3-O-β-d-glucopyranoside, hodgsonialloside C, syringin, 3,4,5-trimethoxyphenyl-β-d-apiofuranosyl-(1→6)-β-d-glucopyranoside, (+)-syringaresinol O-β-d-glucopyranoside, kaempferol 3-O-neohesperidoside, kaempferol 3-O-α-l-rhamnopyranosyl-(1→2)-[α-l-rhamnopyranosyl-(1→6)]-β-d-glucopyranoside, rutin, quercetin 3-O-α-l-rhamnopyranosyl-(1→2)-[α-l-rhamnopyranosyl-(1→6)]-β-d-glucopyranoside, 3-hydroxy-5,6-epoxy-β-ionol 3-O-β-d-glucopyranoside, (6S,9R)-roseoside, (6R,9R)-3-oxo-α-ionol β-d-glucopyranoside, byzantionoside B, citroside A, and bridelionoside B. The structure elucidation of these compounds was based on analyses of physical and spectroscopic data including 1D and 2D NMR experiments.