SESQUITERPENE LACTONES FROM CENTAUREA-HERMANNII

ÖKSÜZ S., SERIN S., TOPCU G.

PHYTOCHEMISTRY, vol.35, no.2, pp.435-438, 1994 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 35 Issue: 2
  • Publication Date: 1994
  • Doi Number: 10.1016/s0031-9422(00)94776-9
  • Journal Name: PHYTOCHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.435-438
  • Bezmialem Vakıf University Affiliated: No

Abstract

The aerial parts of Centaurea hermannii, an endemic plant of Turkey, yielded three new highly oxygenated guaianolides, 15-deschloro-15-hydroperoxychlorojanerin 15-deschloro-15-hydroperoxychlorohyssopi B and 15-deschloro-3 beta-acetoxy-15-hydroxy-chlorojanerin in addition to four known guaianolides, cynaropicrin, janerin, 19-desoxy-chlorojanerin and 15-deschloro-15-acetoxychlorojanerin, and sitosteryl 3 beta-D-glucoside, beta-sitosterol and alpha-amyrin. The structures were elucidated by high field NMR techniques and chemical transformations.