Perisesaccharides A-E, new oligosaccharides from the root barks of Periploca sepium.
Five new oligosaccharides, named perisesaccharides A-E (1- 5), were isolated from the root barks of Periploca sepium. Their structures were elucidated by NMR and HRESIMS data. The absolute configurations of these compounds were determined by a combination of X-ray diffraction analysis, modified Mosher's method, circular dichroism spectroscopy, and acid hydrolysis. The boat conformation of oleandronic acid delta-lactone was reported for the first time.
Wang
Lei
L
Department of Phytochemistry, China Pharmaceutical University, Nanjing, P R China.
Yin
Zhi-Qi
ZQ
Wang
Ying
Y
Zhang
Xiao-Qi
XQ
Li
Yao-Lan
YL
Ye
Wen-Cai
WC
D015394:Molecular Structure; D009844:Oligosaccharides / Q000737:chemistry / Q000302:isolation & purification*; D031109:Periploca / Q000737:chemistry*; D024301:Plant Bark; D010936:Plant Extracts / Q000737:chemistry; D018517:Plant Roots
D009844:Oligosaccharides; D010936:Plant Extracts