Steroids 2005-Apr
New glycosides of the campesterol derivative from the rhizomes of Tacca chantrieri.
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Keywords
Abstract
Seven new glycosides of the campesterol derivative (24R,25S)-ergost-5-ene-3beta,26-diol (1-7) were isolated from the rhizomes of Tacca chantrieri (Taccaceae). Their structures were determined by extensive spectroscopic analysis, including 2D NMR data, and a few chemical transformations.