中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
6-酮胆甾烷醇 | 6-ketocholestanol | 1175-06-0 | C27H46O2 | 402.661 |
—— | 5α-cholestan-3β-yl acetate | 1255-88-5 | C29H50O2 | 430.715 |
—— | 6-oxo-5a-cholestane-3β,5-diol 3-acetate | —— | C29H48O4 | 460.698 |
—— | 5α-bromo-6-ketocholestan-3β-yl acetate | 14956-20-8 | C29H47BrO3 | 523.594 |
(5alpha)-胆甾烷-3,6-二酮 | 5α-cholestane-3,6-dione | 2243-09-6 | C27H44O2 | 400.645 |
—— | 3β-acetoxy-5α-cholestan-6-one (E)-oxime | 31239-42-6 | C29H49NO3 | 459.713 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 3α-acetoxy-5α-cholestan-6-one | 21513-83-7 | C29H48O3 | 444.698 |
—— | 3α-methoxy-5α-cholestan-6-one | 21513-82-6 | C28H48O2 | 416.688 |
6-酮胆甾烷醇 | 6-ketocholestanol | 1175-06-0 | C27H46O2 | 402.661 |
—— | 5α-cholestan-3β-yl acetate | 1255-88-5 | C29H50O2 | 430.715 |
—— | 5α-bromo-6-ketocholestan-3β-yl acetate | 14956-20-8 | C29H47BrO3 | 523.594 |
—— | 3β-Hydroxy-B-homo-6-oxa-5α-cholestan-7-one 3-acetate | 20104-89-6 | C29H48O4 | 460.698 |
(5alpha)-胆甾烷-3,6-二酮 | 5α-cholestane-3,6-dione | 2243-09-6 | C27H44O2 | 400.645 |
—— | 3β-acetoxy-5α-cholestan-6-one (E)-oxime | 31239-42-6 | C29H49NO3 | 459.713 |
Syntheses of 5-hydroxy-5α- and 5β-cholestan-6-one (11 and 13) and their 3β-acetoxy (10 and 21) and 3β-benzyloxy derivatives (12 and 19) are described, as are syntheses of the 7α-deutero derivatives of 10 and 21. Related investigations of the syntheses of the 5-methoxy and 5-methyl analogues of these compounds are also discussed. Treatment of 12 with potassium tert-butoxide has been shown to give 5-hydroxy-5β-cholest-3-en-6-one (14) and its Δ2 isomer 15. Reaction of 6-nitrocholesteryl acetate (50) with lithium dimethylcuprate gives 3α,5-cyclo-5α-cholestan-6-one (E)-oxime (51) as the major product.