• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1
  • Tagged with
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Studies on the bioactive constituents of the Formosan soft coral Cespitularia hypotentaculata

Li, Chia-hua 18 February 2005 (has links)
Eight new metabolites (1-5 and 7-9) and one known compound were isolated from the acetone/methylene chloride (1:1)extracts of the Formosan soft coral Cespitularia hypotenta-culata. These compounds can be divided into five groups: cespitularin I (1), having the verticillane skeleton, cespitularin J (2), that possesses the norverticillane skeleton, cespitularin K (3)¡B6-acetoxycespitularin F (4) and cespitularin L (5), possessing the cespitularane skeleton, (24S)-3£],11-dihydroxy-5£],6£]-epoxy-24-methyl-9,11-secocholestan-9-one (6), 3£],11-dihydroxy-5£],6£]-epoxy-9,11-secocholestan-9-one (7), and 3£]-hydroxy-5£],6£]-epoxy-9-oxo-9,11-secogorgo-stan-11-ol (8) are secosterols, and xenia diterpene, cespolide A (9). All of these structures were elucidated by extensive spectral analysis, and their cytotoxicity against selected cancer cells was measured in vitro.

Page generated in 0.0433 seconds