Selective oxidation of the double bonds in the 4-phenyl-1,2,4-triazoline-3,5-dione diels-alder adduct of ergosterol acetate
作者:David M. Piatak、Rebecca P. Swenson
DOI:10.1016/0039-128x(84)90061-8
日期:1984.1
for oxidations at the 6(7)- and 22(23)-double bonds in the phenyltriazoline adduct of ergosterol acetate (I) are described. KMnO4 and OsO4 were found to react with the 6(7)-doublebond to yield the 6,7-glycol and osmate ester, respectively. Other reagents (I2/AgOAc, H2O2, m-chloroperbenzoic acid, HCO3H) formed either isomeric epoxides or glycols with the 22(23)-doublebond, with the latter two reagents
[EN] SIDE-CHAIN MODIFIED ERGOSTEROL AND STIGMASTEROL DERIVATIVES AS LIVER X RECEPTOR MODULATORS<br/>[FR] DÉRIVÉS D'ERGOSTÉROL ET DE STIGMASTÉROL MODIFIÉS PAR CHAÎNE LATÉRALE EN TANT QUE MODULATEURS DU RÉCEPTEUR HÉPATIQUE X