Steroidal sapogenins and glycosides from the rhizomes of Dioscorea bulbifera.
Four new steroidal sapogenins (1-4), named diosbulbisins A-D, two new spirostane glycosides, diosbulbisides A (5) and B (6), one new cholestane glycoside, diosbulbiside C (7), and the known compounds 8-10 were isolated from rhizomes of Dioscorea bulbifera. Their structures were elucidated by 1D and 2D NMR techniques, HRFTMS, and chemical methods. The unusual furospirostanol sapogenin skeletons, as found in compounds 3 and 4, are reported in the family Dioscoreaceae for the first time. Cytotoxicity of compounds 1-10 was evaluated using two human hepatocellular carcinoma cell lines (Bel-7402 and SMMC7721).
Liu
Hai
H
The MOE Key Laboratory for Standardization of Chinese Medicines, Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201210, People's Republic of China.
Chou
Gui-Xin
GX
Wu
Tao
T
Guo
Yin-Long
YL
Wang
Shun-Chun
SC
Wang
Chang-Hong
CH
Wang
Zheng-Tao
ZT
D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D027742:Dioscorea / Q000737:chemistry*; D004354:Drug Screening Assays, Antitumor; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D006801:Humans; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D027343:Rhizome / Q000737:chemistry; D012502:Sapogenins / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D013256:Steroids / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology
D000972:Antineoplastic Agents, Phytogenic; D004365:Drugs, Chinese Herbal; D006027:Glycosides; D012502:Sapogenins; D013256:Steroids