catalysts has been investigated. It has been established that depending upon the reaction conditions trienone 2,1 -methyltrienone3, dienone 4, diacetoxyketone5 or dione 6 are formed as the major products. Dienone 4 and dione 6 are the main compounds of the reactions of tosyloxyketone 10 with KHSO4 and HBraq, respectively. The reaction of acetoxyketone 8 with HBraq furnishes epimeric 3-bromoketones 12 and 13
Effects of novel synthetic sterol probes on enzymes of cholesterol metabolism in cell-free and cellular systems
作者:Rachel A. Harte、Stephen J. Yeaman、John McElhinney、Colin J. Suckling、Brian Jackson、Keith E. Suckling
DOI:10.1016/0009-3084(96)02593-5
日期:1996.9
A series of novelsterols was synthesised as probes for the enzymatic and cellular functions of two important enzymes of intracellular cholesterolmetabolism, acyl-CoA:cholesterol acyltransferase (ACAT) and cholesterol 7 alpha-hydroxylase. The compounds were 6-fluoro-5-cholesten-3 beta-ol (6-fluorocholesterol), 7-cholesten-3 beta-ol (7-cholestenol), 6 beta-fluorocholestan-3 beta-ol (6 beta-fluorocholestanol)