Related Experiment Video
Updated: Aug 8, 2026

Cellular Lipid Extraction for Targeted Stable Isotope Dilution Liquid Chromatography-Mass Spectrometry Analysis
Published on: November 17, 2011
Five new polyoxygenated cholestane bisdesmosides from the bulbs of Galtonia candicans
Y Mimaki1, M Kuroda, A Yokosuka
1Laboratory of Medicinal Plant Science, School of Pharmacy, Tokyo University of Pharmacy and Life Science, 1432-1, Horinouchi, Hachioji, Tokyo 192-0392, Japan. mimakiy@ps.toyaku.ac.jp
Abstract:
Two new cholestane bisdesmosides (1, 2) based upon (22S)-cholest-5-ene-3 beta,16 beta,22-triol with an acetyl group at the sugar moiety and three new ones (3-5) based upon (22S)-cholest-5-ene-1 beta,3 beta,16 beta,22-tetrol, along with a known cholestane glycoside, were isolated from the bulbs of Galtonia candicans. The structures of the new compounds were determined by spectroscopic analysis and chemical transformations.
Related Concept Videos
Bile
Bile is released when dietary fats enter...
Gallbladder
The gallbladder's anatomy consists of three regions: the fundus, body, and neck. Extending from the neck, the cystic duct joins the common...
Cholecystitis

