New minor spirostanol glycosides from Helleborus thibetanus. Issue 8 (18th April 2017)

• Record Type: Journal Article
• Authors: Zhang, Hui; Su, Yan-Fang; Yang, Feng-Ying; Gao, Xiu-Mei
• Is Part Of: Natural product research. Volume 31:Issue 8(2017)
• Page Start: 925
• Page End: 931
• Publication Date: 2017-04-18
• Subjects: Helleborus -- Ranunculaceae -- steroidal saponins -- spirostanol; Natural products -- Periodicals; Natural products -- Research -- Periodicals; Biological Factors -- Periodicals; Biological Products -- Periodicals; 547
• DOI: 10.1080/14786419.2016.1255888
• Languages: English
• ISSNs: 1478-6419

Abstract

Abstract: Phytochemical reinvestigation of the dried roots and rhizomes of Helleborus thibetanus afforded four new minor spirostanol glycosides (1 –4 ) and four known spirostanol glycosides (5 –8 ). Their structures were determined on the basis of spectroscopic analyses, including 1D and 2D NMR experiments, together with HR-ESI-MS and IR measurements and the results of acid hydrolysis. Abstract :