中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | demosterol acetate | 2665-04-5 | C29H46O2 | 426.683 |
胆固醇醋酸酯 | Cholesteryl acetate | 604-35-3 | C29H48O2 | 428.699 |
25-羟基胆甾醇 | 25-hydroxychlolesterol | 2140-46-7 | C27H46O2 | 402.661 |
链甾醇 | demosterol | 313-04-2 | C27H44O | 384.646 |
—— | 24-ethylcholesta-5,22-dien-3β-ol | 32345-19-0 | C29H48O | 412.7 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | demosterol acetate | 2665-04-5 | C29H46O2 | 426.683 |
胆固醇醋酸酯 | Cholesteryl acetate | 604-35-3 | C29H48O2 | 428.699 |
—— | [(3S,8S,9S,10R,13R,14S,17R)-17-[(2R)-6-azido-6-methylheptan-2-yl]-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate | 243446-92-6 | C29H47N3O2 | 469.711 |
—— | (3β)-3-(acetyloxy)-25-hydroxycholest-5-en-7-one | 64907-20-6 | C29H46O4 | 458.682 |
25-羟基胆甾醇 | 25-hydroxychlolesterol | 2140-46-7 | C27H46O2 | 402.661 |
链甾醇 | demosterol | 313-04-2 | C27H44O | 384.646 |
—— | 25-(Tetrahydro-2H-pyran-2-yl)oxy-5-cholesten-3β-ol | 80239-48-1 | C32H54O3 | 486.779 |
(1S,3R,8S,9S,10R,13R,14S,17R)-17-[(2R)-6-羟基-6-甲基-庚烷-2-基]-10,13-二甲基-2,3,4,7,8,9,11,12,14,15,16,17-十二氢-1H-环戊二烯并[a]菲-1,3-二醇 | 1α,3β,25-Trihydroxy-cholest-5-ene | 50392-32-0 | C27H46O3 | 418.66 |
—— | 25-(1-Aethoxyaethoxy)-5-cholesten-1α,3β-diol | —— | C31H54O4 | 490.767 |
—— | 25-(Tetrahydro-2H-pyran-2-yl)oxy-5-cholesten-1α,3β-diol | 75678-07-8 | C32H54O4 | 502.778 |
Seven mono- and dihydroxycholesterols were prepared by direct C–H oxidation of the cholestane skeleton with a recently developed Ru(Bpga) catalyst (Ru(Bpga) = [RuCl (bpga) (PPh3)] Cl; bpga = 2-(bis(pyridin-2-ylmethyl)amino)-N-(2,6-dimethylphenyl)acetamide)). Due to the high selectivity of the Ru(Bpga) complex for tertiary C–H, the reaction afforded a mixture of 25-, 20-, 17-, and 14-oxygenated cholesterols that could be easily separated by high-performance liquid chromatography. These results suggest that late-stage C–H oxidation could be a viable strategy for preparing candidate metabolites of biologically important molecules.