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[Terpenoid glycosides from stem of Luculia pinceana]
1Institute of Natural Products, Henan University, Kaifeng 475004, China. kangweny@hotmail.com
Objective:
To study the chemical constituents from n-BuOH portion of ethanolic extract from the stem of Luculia pinceana.
Method:
The column chromatographic techniques were applied to isolate constituents. A combination of IR, FAB-MS, NMR and 2D NMR spectroscopy was used to identify structures.
Result:
Seven compounds were isolated from the n-BuOH fraction and their structures were elucidated as vogeloside (1), epi-vogeloside (2), loganoside (3), loganin (4), cincholic acid 28-O-beta-D-glucopyranosyl ester (5), cincholic acid-3-O-beta-D-glucopyranoside, 28-O-beta-D-glucopyranosyl ester (6), cincholic acid-3-O-beta-D-glucopyranoside (7).
Conclusion:
Compounds 1-7 were isolated from the genus for the first time.
