New Pregnane Glycosides from Gymnema sylvestre
AbstractFour new pregnane glycosides 1–4 were isolated from the ethanol extract of the stem of Gymnema sylvestre and named gymsylvestrosides A–D. Hydrolysis of compound 1 under the catalysis of Aspergilus niger β-glucosidase afforded compound 5 (gymsylvestroside E). Their structures were determined by spectroscopic methods such as HRESIMS, 1D and 2D NMR, as well as HMQC-TOCSY experiment. Compounds 1–4 were screened for Saccharomyces cerevisiae α-glucosidase inhibitory activity. View Full-Text
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Xu, R.; Yang, Y.; Zhang, Y.; Ren, F.; Xu, J.; Yu, N.; Zhao, Y. New Pregnane Glycosides from Gymnema sylvestre. Molecules 2015, 20, 3050-3066.
Xu R, Yang Y, Zhang Y, Ren F, Xu J, Yu N, Zhao Y. New Pregnane Glycosides from Gymnema sylvestre. Molecules. 2015; 20(2):3050-3066.Chicago/Turabian Style
Xu, Rui; Yang, Yu; Zhang, Yang; Ren, Fengxia; Xu, Jinlong; Yu, Nengjiang; Zhao, Yimin. 2015. "New Pregnane Glycosides from Gymnema sylvestre." Molecules 20, no. 2: 3050-3066.