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(25R)-5β-cholestane-3α,7α,12α,26-tetrol | 27857-14-3

中文名称
——
中文别名
——
英文名称
(25R)-5β-cholestane-3α,7α,12α,26-tetrol
英文别名
(25R)-5β-cholestane-3α,7α,12α,26(27)-tetrol;(25R)-3α,7α,12α,26-tetrahydroxy-5β-cholestane;(25R)-5β-cholestanetetrol-(3α,7α,12α,26);3α,7α,12α-Trihydroxy-10,13-dimethyl-17β-((1R:5R)-6-hydroxy-1,5-dimethyl-hexyl)-5β-gonan;(10S)-3t,7t,12t-Trihydroxy-10r,13c-dimethyl-17c-((1R:5R)-6-hydroxy-1,5-dimethyl-hexyl)-(5cH,8cH,9tH,14tH)-hexadecahydro-1H-cyclopenta[a]phenanthren;(25R)-5β-Cholestantetrol-(3α,7α,12α,26);(25R)-5beta-cholestane-3alpha,7alpha,12alpha,26-tetrol;(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-17-[(2R,6R)-7-hydroxy-6-methylheptan-2-yl]-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,7,12-triol
(25R)-5β-cholestane-3α,7α,12α,26-tetrol化学式
CAS
27857-14-3
化学式
C27H48O4
mdl
——
分子量
436.676
InChiKey
XJZGNVBLVFOSKJ-IUFSEJPUSA-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:
    >167°C (dec.)
  • 沸点:
    572.6±50.0 °C(Predicted)
  • 密度:
    1.098±0.06 g/cm3(Predicted)
  • 溶解度:
    可溶于DMSO(轻微)、甲醇(轻微、超声处理)、二氯甲烷

计算性质

  • 辛醇/水分配系数(LogP):
    5.3
  • 重原子数:
    31
  • 可旋转键数:
    6
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    80.9
  • 氢给体数:
    4
  • 氢受体数:
    4

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

反应信息

点击查看最新优质反应信息

文献信息

  • Activities of Recombinant Human Cytochrome P450c27 (CYP27) Which Produce Intermediates of Alternative Bile Acid Biosynthetic Pathways
    作者:Irina A. Pikuleva、Amir Babiker、Michael R. Waterman、Ingemar Björkhem
    DOI:10.1074/jbc.273.29.18153
    日期:1998.7
    its role in the degradation of the side chain of C27 steroids in the hepatic bile acid biosynthesis pathway, which begins with 7alpha-hydroxylation of cholesterol in liver. However, recognition that in humans P450c27 is a widely or ubiquitously expressed mitochondrial P450, and that there are alternative pathways of bile acid synthesis which begin with 27-hydroxylation of cholesterol catalyzed by P450c27
    细胞色素P450c27(CYP27)的主要生理意义与其在肝胆汁酸生物合成途径中C27类固醇侧链降解中的作用有关,该作用始于肝脏中胆固醇的7α-羟基化。但是,人们认识到P450c27是广泛或普遍表达的线粒体P450,并且存在胆汁酸合成的其他途径,其始于P450c27催化的胆固醇的27-羟基化反应,这表明需要重新评估该酶及其作用催化性能。人们认为27-羟基胆固醇是P450c27与胆固醇反应形成的唯一产物。然而,本研究表明重组人P450c27还能够进一步氧化27-羟基胆固醇,首先生成醛,然后生成3beta-羟基-5-胆甾烯酸。动力学数据表明,在重构的系统中,由胆固醇形成27-羟基胆固醇后,它会从P450中释放出来,然后与胆固醇竞争重新进入酶活性位点以进一步氧化。在亚饱和底物浓度下,人P450c27将27-羟基胆固醇和3β-羟基-5-胆固醇氧化为酸的效率大于将胆固醇羟基化为27-羟基胆固醇的效率,
  • Putative Helix F Contributes to Regioselectivity of Hydroxylation in Mitochondrial Cytochrome P450 27A1
    作者:Irina A. Pikuleva、Andrei Puchkaev、Ingemar Björkhem
    DOI:10.1021/bi010193i
    日期:2001.6.1
    correctly oriented substrate to the P450 active site. The I211K and F215K mutations, for example, affected the regioselectivity of P450 27A1-dependent hydroxylation reactions and conferred the P450 capacity to cleave the C-C bond of the substrate during the catalytic cycle. Studies of P450 11A1 indicate that Phe-202 has functions similar to those of its counterpart in P450 27A1 (Phe-215). We propose that
    基于与结构特征性细胞色素P450(P450s)的比对,我们确定了线粒体P450s 27A1和11A的推定F和G螺旋。我们在P450 27A1的推定螺旋F中的Phe-207,Ile-211和Phe-215以及推定的螺旋G中的Trp-235和Tyr-238处引入了取代,并比较了野生型和突变体的催化活性,产物模式,底物结合,过氧化氢的形成以及与氧化还原伴侣的相互作用。结果表明,突变的残基对于正确定向的底物向P450活性位点的传递很重要。例如,I211K和F215K突变影响了P450 27A1依赖性羟基化反应的区域选择性,并赋予了P450在催化循环中裂解底物CC键的能力。对P450 11A1的研究表明,Phe-202具有与P450 27A1(Phe-215)对应功能相似的功能。我们提出推定的螺旋F和G形成底物访问通道的侧面,从而提供了控制线粒体P450s中羟基化区域选择性的附加机制。
  • Oxidation of 5β-cholestane-3α,7α,12α-triol into 3α,7α,12α-trihydroxy-5β-cholestanoic acid by cytochrome P-45026 from rabbit liver mitochondria
    作者:Helena Dahlbäck、Ingrid Holmberg
    DOI:10.1016/0006-291x(90)92034-w
    日期:1990.3
    Addition of NAD+ to the incubation mixture did not increase the formation of the acid. Incubation with 5 beta-cholestane-3 alpha,7 alpha,12 alpha,26-tetrol, cytochrome P-450(26), ferredoxin, ferredoxin reductase and NADPH resulted in one major product, 3 alpha,7 alpha, 12 alpha-trihydroxy-5 beta-cholestanoic acid. The cytochrome P-450 required both ferredoxin, ferredoxin reductase and NADPH for activity
    线粒体细胞色素P-450(26)先前被证明可催化5β-胆甾烷3α,7α,12α-三醇的26-羟基化反应,也可将该底物转化为3α,7α,12α -三羟基-5β-胆甾酸。3 alpha,7 alpha,12 alpha-trihydroxy-5 beta-cholestanoic acid的形成随着孵育时间和酶浓度的增加而增加。将NAD +添加到孵育混合物中不会增加酸的形成。与5个β-胆甾烷3α,7α,12α,26-四醇,细胞色素P-450(26),铁氧还蛋白,铁氧还蛋白还原酶和NADPH一起孵育可产生一种主要产物,即3个α,7个α,12个三羟基-5β-胆甾酸。细胞色素P-450需要铁氧还蛋白,铁氧还蛋白还原酶和NADPH才能发挥活性。NADPH无法用NAD +或NADP +代替。
  • Synthesis of biological precursors of cholic acid II
    作者:B. Dayal、G.S. Tint、A.K. Batta、S. Shefer、G. Salen
    DOI:10.1016/s0039-128x(81)80018-9
    日期:1981.2
    This paper describes the partial syntheses of 3 alpha, 7 alpha, 12 alpha-trihydroxy-5 beta-cholestan-26-al, 7 alpha, 12 alpha, 26-trihydroxy-5 beta-cholestan-3-one and 7 alpha, 12 alpha-dihydroxy-3-oxo-5 beta-cholestan-26-al via Ag2CO3/Celite oxidation of 5 beta-cholestane-3 alpha, 7 alpha, 12 alpha, 26-tetrol. These bile alcohols were resolved by analytical and preparative TLC, characterized by gas-liquid chromatography and mass spectrometry. These compounds will be useful to delineate further the mechanism of oxidation of 5 beta-cholestane-3 alpha, 7 alpha, 12 alpha, 25-tetrol on the pathway to cholic acid.
  • Danielsson, Acta Chemica Scandinavica (1947), 1960, vol. 14, p. 348,351
    作者:Danielsson
    DOI:——
    日期:——
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