Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7767887 | Biochemical Systematics and Ecology | 2016 | 6 Pages |
Abstract
A new acetylated spirostanol saponin (7), dioscin-6â²-O-acetate, was isolated from the rhizomes of Dioscorea althaeoides R. Knuth (Dioscoreaceae), together with fourteen known compounds, including three spirostanol saponins (1-2, 6), three furostanol saponins (10-12), one diarylheptanoid (3), three sterols (4-5, 9), three aliphatic acids (8, 13-14) and one aliphatic alkane (15). Their structures were established by extensive 1D- and 2D- NMR (DEPT, 1H-1H COSY, HSQC, HMBC and NOESY) experiments in conjunction with IR and HRESI/TOF-MS data, as well as the results of acid hydrolysis. The compounds (3-8, 10-15) were isolated from this species for the first time. The chemotaxonomic significance of these compounds was also discussed
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Xuejiao Li, Songsong Jing, Shuli Man, Xia Li, Chengcheng Zhao, Ying Wang, Wenyuan Gao,