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Synthesis and nuclear magnetic resonance study of 3-dehydroecdysteroids

✍ Scribed by Jean-Pierre Girault; Catherine Blais; Philippe Beydon; Christian Rolando; René Lafont

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
897 KB
Volume
10
Category
Article
ISSN
0739-4462

No coin nor oath required. For personal study only.

✦ Synopsis

Several 3-dehydro-(or ~-oxo-) ecdysteroids have been prepared by enzymatic and/or chemical means. Methods for their purification using various highperformance liquid chromatography systems are described. Proton and carbon nuclear magnetic resonance analyses show that 3-dehydroecdysteroids when dissolved in water or methanol (but not in chloroform) present a temperature-dependent equilibrium between two forms. The possible structure of these two forms is discussed.

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