91926-36-2Relevant academic research and scientific papers
[3,3]-Claisen rearrangements in 24α-methyl steroid synthesis: Application to campesterol, crinosterol, and Δ25-crinosterol side chain construction
Khripach, Vladimir A.,Zhabinskii, Vladimir N.,Konstantinova, Olga V.,Khripach, Natalya B.,Antonchick, Andrey P.,Schneider, Bernd
, p. 597 - 603 (2007/10/03)
This paper elaborates an improved synthesis of crinosterol and campesterol starting from stigmasterol. The proposed approach is based on Claisen rearrangement of Δ23-22-allylic alcohols with various configurations of the 22-hydroxy group and ge
A New Synthesis of Brassino Steroids: Plant Growth Promoting Steroids
Anastasia, Mario,Ciuffreda, Pierangela,Fiecchi, Alberto
, p. 379 - 382 (2007/10/02)
(22R,23R)- and (22S,23S)-2α,3α,22,23-Tetrahydroxy-B-homo-7-oxa-5α-ergostan-6-one, two physiologically active brassino steroids, have been synthesized via key intermediate brassicasterol obtained in a very simple way by reduction with lithium dissolved in ethylamine of the 1,4-cycloadduct of ergosterol and 4-phenyl-1,2,4-triazoline-3,5-dione.
