苯甲酸胆固醇脂,又称安息香酸胆固醇脂及胆甾醇苯甲酸酯,系统命名5-胆甾烯-3β-醇苯甲酸酯,是一种有机化合物,由苯甲酸(安息香酸)与胆固醇形成的酯类化合物。在常温下,它呈现为白色结晶固体。
性质苯甲酸胆固醇脂不溶于水,但可以溶解在部分有机溶剂中,并具有良好的热稳定性,不易分解。
制备方法苯甲酸胆固醇脂可以通过将苯甲酰氯与胆固醇在四甲基乙二胺(TMEDA)中并存在二氯甲烷的情况下进行酯化反应来制得。具体步骤未详细说明,但此过程通常较为复杂且需要严格控制条件以确保产物的纯度。
化学性质苯甲酸胆固醇脂为结晶态物质,熔点在149-151℃之间。
用途这种化合物主要用于合成维生素D3的中间体,并应用于液晶显示材料领域。
生产方法其生产过程可通过将胆甾醇与苯甲酰氯进行酯化反应来制得。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-((R)-6-methylheptan-2-yl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl 4-formylbenzoate | —— | C35H50O3 | 518.78 |
—— | 7α-bromocholest-5-en-3β-ol benzoate | 26048-46-4 | C34H49BrO2 | 569.666 |
—— | cholester-3β-yl thiobenzoate | 34103-99-6 | C34H50OS | 506.836 |
胆固醇 | cholesterol | 57-88-5 | C27H46O | 386.662 |
—— | 5α,6β-dibromocholestan-3β-yl benzoate | 26048-47-5 | C34H50Br2O2 | 650.578 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 3β,7β-cholest-5-ene-3,7-diol-3-benzoate | 17974-80-0 | C34H50O3 | 506.769 |
—— | 3β,7α-cholest-5-ene-3,7-diol-3-benzoate | 40824-59-7 | C34H50O3 | 506.769 |
—— | benzyl 3-cholesteryl ether | 7278-60-6 | C34H52O | 476.786 |
7-脱氢苯甲酸胆固醇 | 3β-benzoyloxycholesta-5,7-diene | 1182-06-5 | C34H48O2 | 488.754 |
—— | 3β-benzoyloxy-cholest-5-en-7-one | 6997-41-7 | C34H48O3 | 504.753 |
—— | 7β-bromocholest-5-en-3β-ol benzoate | 65942-28-1 | C34H49BrO2 | 569.666 |
—— | 7α-bromocholest-5-en-3β-ol benzoate | 26048-46-4 | C34H49BrO2 | 569.666 |
—— | 7α-benzoyloxycholesteryl-3β-benzoate | 54758-42-8 | C41H54O4 | 610.877 |
—— | 3β,7β-bis-benzoyloxy-cholest-5-ene | 6038-38-6 | C41H54O4 | 610.877 |
—— | cholester-3β-yl thiobenzoate | 34103-99-6 | C34H50OS | 506.836 |
胆甾-4,6-二烯-3beta-基苯甲酸酯 | cholest-4,6-diene-3β-yl benzoate | 25485-34-1 | C34H48O2 | 488.754 |
5alpha-胆甾烷-3beta-醇苯甲酸酯 | cholestanol benzoate | 5808-11-7 | C34H52O2 | 492.786 |
—— | 3β-benzoyloxy-5β-cholestane | 51646-11-8 | C34H52O2 | 492.786 |
胆固醇 | cholesterol | 57-88-5 | C27H46O | 386.662 |
25-羟基胆甾醇 | 25-hydroxychlolesterol | 2140-46-7 | C27H46O2 | 402.661 |
—— | 5α-hydroperoxy-3β-benzoyloxycholest-6-ene | 129238-78-4 | C34H50O4 | 522.769 |
—— | 7β-acetylcholesterol | 17974-78-6 | C29H48O3 | 444.698 |
20Alpha-羟基胆固醇 | 20(S)-hydroxycholesterol | 516-72-3 | C27H46O2 | 402.661 |
—— | cholest-5-ene-3,20,25-triol | 74803-93-3 | C27H46O3 | 418.66 |
胆甾-5-烯-3,7二醇 | cholest-5-en-3β,7β-diol | 566-27-8 | C27H46O2 | 402.661 |
4-Beta-羟基胆固醇 | 4β-hydroxycholesterol | 17320-10-4 | C27H46O2 | 402.661 |
—— | cholest-5-ene-3β,4α-diol | 34310-86-6 | C27H46O2 | 402.661 |
—— | 5α,6β-dibromocholestan-3β-yl benzoate | 26048-47-5 | C34H50Br2O2 | 650.578 |
7-去氢胆固醇 | 7-dehydrocholesterol | 434-16-2 | C27H44O | 384.646 |
Summary: A graphics package has been developed to display the main chain torsion angles phi, psi (φ, Ψ); (Ramachandran angles) in a protein of known structure. In addition, the package calculates the Ramachandran angles at the central residue in the stretch of three amino acids having specified the flanking residue types. The package displays the Ramachandran angles along with a detailed analysis output. This software is incorporated with all the protein structures available in the Protein Databank.
Availability: This package is available over the world wide web at http://144.16.71.146/rp/ or http://dicsoft1.physics.iisc.ernet.in/rp.
Contact: sekar@physics.iisc.ernet.in
* To whom correspondence should be addressed.
† This work is dedicated to Late Professor G. N. Ramachandran.