A total of thirteen steroidal saponins, including four new furostanol saponins, were isolated from the fresh stems of Dracaena concinna. The structures of new saponins were determined by detailed analysis of their 1H and 13C NMR spectra, hydrolysis, and by comparison of spectral data of known compounds. Two of the new furostanol saponins are unique in structure possessing a 4α-hydroxyl group on the furostanol skeleton.
steroidal saponins, furostanol saponins, spirostanol saponins, Agavaceae, stems, Dracaena concinna
Publication DOI: 10.1016/S0031-9422(97)00717-6Journal NLM ID: 0151434Publisher: Elsevier
Institutions: School of Pharmacy, Tokyo University of Pharmacy and Life Science, Hachioji, Tokyo, Japan
Methods: 13C NMR, 1H NMR, IR, FAB-MS, enzymatic hydrolysis, acid hydrolysis, HPLC, extraction, optical rotation measurement, IF
Found