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3β-胆甾烷醇

3β-胆甾烷醇

CAS号:80-97-7
英文名:(5α)-cholestan-3β-ol
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化合物简介
5α-Cholestan-3β-ol is a carbon stanol formed from biohydrogenation of Cholesterol in the gut. Studies have also examined the conversion of 5α-Cholestan-3β-ol catalyzed by 3-β-hydroxysteroid dehydrogenase of rat liver.
基本信息
编号系统
物化性质
安全信息
生产方法及用途
生产方法
1、体内外均由胆固醇氢化后所得也可由粪甾醇合成。在脊椎动物细胞中,微量伴随胆固醇而存在,在神经组织和肾上腺中较丰富。体内的二氢胆固醇可来自外源也可自身合成。所有组织均可合成,但主要是在肝中合成。
2、 先将粗品胆甾醇
(2)100g(0.26mol)用250mL冰醋酸重结晶,得到的纯品不必干燥直接加入氢化装置中,加入300mL冰醋酸和0.5g氧化铂。于65-75℃,稍有压力的情况下加氢。约2h后基本不再吸收氢气。稍冷后将反应混合物过滤,减压浓缩,析晶,得粗品二氢胆甾醇(含部分乙酸胆甾醇酯)85-90g。将粗品加入400mL乙醇中,再与由25g氢氧化钾和100mL水配成的稀碱混合,回流反应3h。冷却,抽滤,水洗。将滤饼用500mL乙醇重结晶,得二氢胆甾醇75-80g,mp140-141℃,收率75%-80%。
用途
在体内的作用尚不清楚,可能与胆酸和某些激素的形成有关
上游原料
hydrazone of 3-cholestanone 5α-cholestan-3β-yl benzyl ether cholest-4-ene-3β,6β-diol diacetate 3β,6β-bis[(methylthio)thiocarbonyloxy]-5α-cholestane 乙醇钠 6'-benzhydryl-spiro[cholestan-3,2'-[1,3]oxathiane] N-phenyl thiocarbamate de cholestanyle-3β N-methyl-N-[2-(NN-dimethylamino)ethyl]aminothiocarbonyloxy-5α-cholestane 丙酮 3β-(NN-diethylaminocarbonyloxy)-5α-cholestane phenyl-2 acetate de 5α-cholestanyl-3β 3β-(piperidinothiocarbonyloxy)-5α-cholestane 5α-cholestanediyl-(3β.6α)-dibenzoate 乙醇 5α-cholestan-3β-yl allyl ether 5'-benzhydryl-spiro[cholestan-3,2'-[1,3]oxathiolane] 5α-cholestane-3β,6β-diyl bis-(adamantane-1-carboxylate) 3β-phenylcarbamoyloxy-5α-cholestane 丁酮 (3beta,5alpha)-胆甾烷-3-基乙酸酯 [10,13-dimethyl-17-(6-methylheptan-2-yl)-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl] methanesulfonate 氮气 4-胆甾烯-3-酮 acetic acid-(3α.5α-cyclo-cholestanyl-(6β)-ester) 乙胺 5α-cholesta-3-one 3α-O-oxathiolane 4-Beta-羟基胆固醇 3β-formyloxy-5αH-cholestane N-methyl N-phenyl carbamate de cholestanyle-3β 3β-(NN-diethylaminothiocarbonyloxy)-5α-cholestane cholestane-3β,5α-diol diacetate 3β,6β-bis(pyrrolidin-1-ylthiocarbonyloxy)-5α-cholestane 5alpha-胆甾烷-3beta-醇苯甲酸酯 5-Alpha-胆甾烷-3-酮 bis-(cholestan-3β-yl) xanthic anhydride di-(5α-cholestanylidene-(3))-hydrazine 20α-Amino-5α-pregnanol-(3β) 醋酸 5α-cholestan-3β-yl 2,2-dimethylpropanoate 3β-(isopropyloxycarbonyloxy)-5α-cholestane 5α-Cholestanyl n-methyl Carbonat 胆固醇 5α-cholestane-3β,6β-diol diacetate 别胆固醇 乙醚 5α-cholestan-3β-yl adamantane-1-carboxylate (2R,5S,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-((R)-6-methylheptan-2-yl)-2-(phenylselanyl)hexadecahydro-3H-cyclopenta[a]phenanthren-3-one