Perisesaccharides A-E, new oligosaccharides from the root barks of Periploca sepium

  • Planta Med. 2010 Jun;76(9):909-15. doi: 10.1055/s-0029-1240842.
Lei Wang  1 ,  Zhi-Qi Yin ,  Ying Wang ,  Xiao-Qi Zhang ,  Yao-Lan Li ,  Wen-Cai Ye
Affiliations
  • 1. Department of Phytochemistry, China Pharmaceutical University, Nanjing, P R China.
PMID: 20143291 DOI: 10.1055/s-0029-1240842
Abstract

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.

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