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别胆固醇 | 517-10-2

中文名称
别胆固醇
中文别名
——
英文名称
allocholesterol
英文别名
cholest-4-en-3β-ol;cholesterol;(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,6,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol
别胆固醇化学式
CAS
517-10-2
化学式
C27H46O
mdl
——
分子量
386.662
InChiKey
UIMGHSAOLFTOBF-DPAQBDIFSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    132°
  • 比旋光度:
    D23 +43.7° (c = 1 in benzene)
  • 沸点:
    452.8°C (rough estimate)
  • 密度:
    0.9610 (rough estimate)

计算性质

  • 辛醇/水分配系数(LogP):
    8.6
  • 重原子数:
    28
  • 可旋转键数:
    5
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.93
  • 拓扑面积:
    20.2
  • 氢给体数:
    1
  • 氢受体数:
    1

SDS

SDS:07e3bb8f42a99f3c0144d07b3bbaa56c
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上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量
    • 1
    • 2

反应信息

  • 作为反应物:
    描述:
    别胆固醇dichloro(1,5-cyclooctadiene)ruthenium(II) 、 C30H30N3P2(1+)*Cl(1-) 、 potassium hydroxide 作用下, 以 甲苯 为溶剂, 反应 24.0h, 生成 4-胆甾烯-3-酮
    参考文献:
    名称:
    原位生成的面部钌-CPP配合物催化醇脱氢制羧酸
    摘要:
    使用从[Ru(COD)Cl 2 ] n原位生成的面部钌配合物和N-杂环卡宾(NHC)-膦-膦配体(CPP)杂化的选择性催化体系,将伯醇脱氢为羧酸已被首次报道。通过反应混合物的NMR分析揭示了面部配位模型。这样的事实-钌催化剂体系表现出高催化活性和稳定性,并且当催化剂负载量低至0.002 mol%时,可以达到2万的高周转率。暂时将极高的催化剂稳定性归因于NHC的锚固作用和膦的半定性。催化系统还具有广泛的底物范围。特别地,发现CPP配体的面部配位对于空间受阻的醇是有益的,并且邻位取代的苄醇和大体积的金刚烷基甲醇以及胆固醇都被认为是可行的脱氢底物。
    DOI:
    10.1021/acs.joc.9b01100
  • 作为产物:
    描述:
    胆固醇 在 sodium tetrahydroborate 、 cerium(III) chloride heptahydrate 、 aluminum isopropoxide 作用下, 以 甲醇环己酮甲苯 为溶剂, 反应 10.0h, 生成 别胆固醇
    参考文献:
    名称:
    Structure–activity relationships of oxysterol-derived pharmacological chaperones for Niemann–Pick type C1 protein
    摘要:
    Niemann-Pick disease type C is a fatal neurodegenerative disease, and its major cause is mutations in NPC1 gene. This gene encodes NPC1 protein, a late endosomal polytopic membrane protein required for intracellular cholesterol trafficking. One prevalent mutation (11061T) has been shown to cause a folding defect, which results in failure of endosomal localization of the protein, leading to loss-of-function phenotype. We have previously demonstrated that several oxysterols and their derivatives act as pharmacological chaperones; binding of these compounds to NPC1(11061T) mutant protein corrects the localization/maturation defect of the mutant protein. Here, we disclose detailed structure-activity relationships of oxysterol derivatives as pharmacological chaperones for NPC1(11061T) mutant. (C) 2014 Elsevier Ltd. All rights reserved.
    DOI:
    10.1016/j.bmcl.2014.05.064
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文献信息

  • Selective aerobic oxidation of allylic and benzylic alcohols catalyzed by N-hydroxyindole and copper(I) chloride
    作者:Shu-Su Shen、Vita Kartika、Ying Shan Tan、Richard D. Webster、Koichi Narasaka
    DOI:10.1016/j.tetlet.2011.12.058
    日期:2012.2
    1-hydroxy-2-methyl-6-trifluoromethyl-1H-indole-3-carboxylate acted as a catalyst for the chemoselective aerobic oxidation of allylic and benzylic alcohols. A variety of primary and secondary allylic and benzylic alcohols were oxidized into the corresponding α,β-unsaturated carbonyl compounds in good yields without affecting non-allylic alcohols.
    在氯化铜(I)的存在下,1-羟基-2-甲基-6-三氟甲基-1 H-吲哚-3-羧酸叔丁酯用作烯丙基和苄基醇的化学选择性好氧氧化的催化剂。各种一次和二次烯丙基和苄基醇的被氧化成相应的α,β -以良好产率的不饱和羰基化合物在不影响非烯丙基醇。
  • Cleavages of ethers by chlorotrimethylsilane and acetic anhydride
    作者:J C Sarma、M Borbaruah、D N Sarma、N C Barua、R P Sharma
    DOI:10.1016/s0040-4020(01)87555-4
    日期:1986.1
    benzyl ethers have been cleaved with a combination of reagents consisting of chlorotrimethylsilane and acetic anhydride containing a catalytic amount of concentrated sulfuric acid. Methylthiomethyl ethers yield the corresponding acetoxymethyl ethers with chlorotrimethylsilane and acetic anhydride. Comparative study with the borontrifluoride etherate and acetic anhydride method of ether cleavage suggests
    甲基和苄基醚已用由三甲基氯硅烷和乙酸酐组成的试剂组合裂解,其中含有催化量的浓硫酸。甲硫基甲基醚与氯代三甲基硅烷和乙酸酐产生相应的乙酰氧基甲基醚。与三氟化硼醚化物和乙酸酐方法进行醚裂解的比较研究表明,氯三甲基硅烷和乙酸酐(在H 2 SO 4催化下)可能是一种有用的替代方法。
  • Studies on dimethyl-tert-butylsilyl ethers of steroid.
    作者:HIROSHI HOSODA、KOUWA YAMASHITA、HIROMITSU SAGAE、TOSHIO NAMBARA
    DOI:10.1248/cpb.23.2118
    日期:——
    In order to obtain the more precise knowledge on the nature of the dimethyl-tert-butylsilyloxy linkage, several steroid silyl ethers were prepared. The rate of acid-catalyzed hydrolysis was determined with the typical steroid derivatives. Convenient syntheses of 3β-hydroxy-4-androsten-17-one have also been described.
    为了更精确地了解二甲基叔丁基硅氧键的性质,制备了几种类固醇硅醚。通过典型的类固醇衍生物测定了酸催化水解的速率。同时,还描述了3β-羟基-4-雄烯-17-酮的便捷合成方法。
  • Highly efficient epoxidation of unsaturated steroids using magnesium bis(monoperoxyphthalate) hexahydrate
    作者:João F.S. Carvalho、M. Manuel Cruz Silva、M. Luisa Sá e Melo
    DOI:10.1016/j.tet.2009.01.100
    日期:2009.4
    Fast generation of epoxides from the corresponding homoallylic and allylic steroidal olefins was developed by using magnesium bis(monoperoxyphthalate) hexahydrate (MMPP) as oxidant suspended in acetonitrile (CH3CN) at reflux temperature. The protocol involves the use of a safe readily available oxidant along with an easy work-up, which renders the process very efficient. Selective 4,5- and 5,6-epoxidations
    通过在回流温度下使用悬浮在乙腈(CH 3 CN)中的双(双过氧邻苯二甲酸酯)六水合镁(MMPP)作为氧化剂,可以从相应的均烯丙基和烯丙基甾体烯烃快速生成环氧化物。该方案涉及使用安全易得的氧化剂以及易于后处理的方法,这使该过程非常有效。据报道类固醇的选择性4,5-和5,6-环氧化。其中,Δ的高立体选择性环氧化5 -B去甲胆甾烷达到了。而且,该方法对5,6-位是化学选择性的,可用于环A烯酮的环氧化。
  • Practical Oppenauer (OPP) Oxidation of Alcohols with a Modified Aluminum Catalyst
    作者:Takashi Ooi、Hidehito Otsuka、Tomoya Miura、Hayato Ichikawa、Keiji Maruoka
    DOI:10.1021/ol020094c
    日期:2002.8.1
    highly effective for Oppenauer (OPP) oxidation of alcohols under mild conditions. For example, oxidation of carveol in toluene with t-BuCHO (1.2 equiv) as a hydride acceptor in the presence of 2 (1 mol %) proceeded smoothly at 21 degrees C to give carvone in 94% yield after 1 h. A practical aspect of this system was highlighted by the facile OPP oxidation of terpenoids and steroids with 1.2-3.0 equiv
    [反应:见正文]发现改性铝催化剂2在温和条件下对醇类的Oppenauer(OPP)氧化非常有效。例如,在2(1 mol%)的存在下,使用t-BuCHO(1.2当量)作为氢化物受体,在甲苯中进行香芹酚的氧化,在21摄氏度下顺利进行,在1小时后得到香芹酮,收率为94%。该系统的一个实用方面是萜烯和类固醇的轻度OPP氧化,含1.2-3.0当量的丙酮和2(3-5摩尔%)。
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