Steroidal glycosides from the aerial part of Asclepias incarnata
作者:Tsutomu Warashina、Tadataka Noro
DOI:10.1016/s0031-9422(99)00560-9
日期:2000.2
The aerialpart of Asclepias incarnata afforded 34 pregnane glycosides. These were confirmed to have lineolon, isolineolon, ikemagenin, 12-O-nicotinoyllineolon, deacylmetaplexigenin, metaplexigenin, rostratamine, 12-O-acetyllineolon, 15beta-hydroxylineolon and 15beta-hydroxyisolineolon moieties as their aglycones, and 2.6-dideoxyhexopyranose, glucopyranose and allopyranose as the corresponding sugar
Verticillosides A–M: Polyoxygenated pregnane glycosides from Asclepias verticillata L.
作者:Juan J. Araya、Franklin Binns、Kelly Kindscher、Barbara N. Timmermann
DOI:10.1016/j.phytochem.2012.02.019
日期:2012.6
As part of our ongoing effort to explore the chemical diversity of plants of the United States Midwest region, the isolation and identification of 13 pregnane glycosides named verticillosides A-M from Asclepias verticillata L are reported. The structures of these compounds were elucidated by various spectroscopic techniques, including 10 and 2D NMR, IR, UV, and HRMS. The cytotoxicity of the isolates was evaluated against paired breast cell lines Hs578T (cancer) and Hs578Bst (normal), however, no significant growth inhibition was observed. (C) 2012 Elsevier Ltd. All rights reserved.
Immunomodulating Steroidal Glycosides from the Roots ofStephanotis mucronata
作者:Yiping Ye、Xiaoyu Li、Hongxiang Sun、Fengyang Chen、Yuanjian Pan
DOI:10.1002/hlca.200490215
日期:2004.9
Guided by in vitro immunological tests, three immunomodulating steroidalglycosides, stemucronatosides A (1), B (2), and C (3), were isolated from the roots of Stephanotis mucronata. On the basis of chemical evidence and extensive spectroscopic methods including 1D and 2D NMR, their structures were determined as 12-O-deacetylmetaplexigenin 3-[O-6-deoxy-3-O-methyl-β-D-allopyranosyl-(14)-O-β-D-cymar