Five new steroidal compounds from Ypsilandra thibetica

	Five new steroidal compounds from Ypsilandra thibetica
	Xie, Bai-Bo ; Liu, Hai-Yang; Ni, Wei ; Chen, Chang-Xiang; Lu, Yang ; Wu, Li ; Zheng, Qi-Tai
	2006
发表期刊	CHEMISTRY & BIODIVERSITY
ISSN	1612-1872
卷号	3 期号:11 页码:1211-1218
摘要	Five new steroids, including the four new steroidal saponins ypsilandroside B (1), ypsilandroside A (2), isoypsilandroside A (4), and isoypsilandroside B (5), as well as the new steroidal sapogenin isoypsilandrogenin (3), were isolated from the whole plant of Ypsilandra thibetica FRANCH. Their structures were determined on the basis of spectroscopic analyses, including extensive 2D-NMR techniques. The structure and relative configuration of ypsilandroside B (=(3 beta,12 alpha,25R)-3-[(alpha-L-rhamnopyranosyl-(1 -> 2)-beta-D-apiofuranosyl)oxy]spirost-5-ene-12,27-diol; 1) was unequivocally determined by single-crystal X-ray diffraction. The antifungal and antibacterial activities of 1-5 towards various types of fungi and bacteria are reported.
关键词	Saponins
学科领域	Biochemistry & Molecular Biology ; Chemistry ; Multidisciplinary
收录类别	SCI
语种	英语
WOS记录号	WOS:000242557900004
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/2151
专题	植物化学与西部植物资源持续利用国家重点实验室
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources W China, Kunming 650204, Hunnan, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Chinese Acad Med Sci, Inst Mat Med, Beijing 100050, Peoples R China
推荐引用方式 GB/T 7714	Xie, Bai-Bo,Liu, Hai-Yang,Ni, Wei,et al. Five new steroidal compounds from Ypsilandra thibetica[J]. CHEMISTRY & BIODIVERSITY,2006,3(11):1211-1218.
APA	Xie, Bai-Bo.,Liu, Hai-Yang.,Ni, Wei.,Chen, Chang-Xiang.,Lu, Yang.,...&Zheng, Qi-Tai.(2006).Five new steroidal compounds from Ypsilandra thibetica.CHEMISTRY & BIODIVERSITY,3(11),1211-1218.
MLA	Xie, Bai-Bo,et al."Five new steroidal compounds from Ypsilandra thibetica".CHEMISTRY & BIODIVERSITY 3.11(2006):1211-1218.

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