Cyclocephaloside I:: A novel cycloartane-type glycoside from <i>Astragalus microcephalus</i>

Bedir E., Calis I., Zerbe O., Sticher O.

JOURNAL OF NATURAL PRODUCTS, no.4, pp.503-505, 1998 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Publication Date: 1998
  • Doi Number: 10.1021/np9704011
  • Journal Name: JOURNAL OF NATURAL PRODUCTS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Index Chemicus (IC)
  • Page Numbers: pp.503-505
  • Hacettepe University Affiliated: Yes

Abstract

A novel cycloartane-type glycoside, cyclocephaloside I (1) was isolated from the roots of Astragalus microcephalus in addition to known glycosides cyclocanthoside E (2) and astragaloside IV (3). The structure of 1 was determined by spectral (IR, H-1 and C-13 NMR, and FABMS) and chemical (acetylation) methods and established as 20,25-epoxy-3 beta-(beta-D-xylopyranosyl)oxy-6 alpha-(beta-D-glucopyranosyl)oxy-cycloartane-16 beta,24 alpha-diol.