首页|Megastigmane and 7,9′-dinorlignan glycosides from the tubers of Stephania kaweesakii
Megastigmane and 7,9′-dinorlignan glycosides from the tubers of Stephania kaweesakii
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NSTL
Elsevier
? 2022Two isomers of megastigmane glycosides, (6R, 9S)-blumenol C 9-O-gentibioside (2) and (6S, 9S)-blumenol C 9-O-gentiobioside (3), and a new 7,9′-dinorlignan glycoside, stepdonorlignoside (4) were isolated from the tubers of Stephania kaweesakii. The structure determinations were considered based on the physical data and spectroscopic evidence. The absolute configurations of two megastigmanes were determined for the first time. Additionally, ten known compounds were isolated: (6R, 9S)-blumenol C 9-O-β-D-glucopyranoside, (+)-isolariciresinol 3a-O-β-D-glucopyranoside, salidroside, N-trans-caffeoyltyramine, (R)-isococlaurine, (R)-isococlaurine 4′-O-β-glucopyranoside, (?)-oblongine, (+)-magnocurarine, fordianoside, and (?)-cyclanoline.
NSTL
Elsevier
