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(E)-(20S)-de-A,B-8-(bromomethylene)cholestan-25-ol | 214351-89-0

中文名称
——
中文别名
——
英文名称
(E)-(20S)-de-A,B-8-(bromomethylene)cholestan-25-ol
英文别名
(8E,20S)-8-bromomethylene-des-A,B-cholestan-25-ol;(S)-6-((1R,3aR,7aR,E)-4-(bromomethylene)-7a-methyloctahydro-1H-inden-1-yl)-2-methylheptane-2-ol;(E)-de-A,B-8-(bromomethylene)cholestan-25-ol;(6S)-6-[(1R,3aR,4E,7aR)-4-(bromomethylidene)-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]-2-methylheptan-2-ol
(E)-(20S)-de-A,B-8-(bromomethylene)cholestan-25-ol化学式
CAS
214351-89-0
化学式
C19H33BrO
mdl
——
分子量
357.374
InChiKey
DALBGOBYZVCRCK-PQWZQEBQSA-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

  • 沸点:
    409.3±18.0 °C(Predicted)
  • 密度:
    1.185±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    6
  • 重原子数:
    21
  • 可旋转键数:
    5
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.89
  • 拓扑面积:
    20.2
  • 氢给体数:
    1
  • 氢受体数:
    1

反应信息

点击查看最新优质反应信息

文献信息

  • Design and Efficient Synthesis of 2α-(ω-Hydroxyalkoxy)-1α,25-dihydroxyvitamin D<sub>3</sub> Analogues, Including 2-<i>e</i><i>pi</i>-ED-71 and Their 20-Epimers with HL-60 Cell Differentiation Activity
    作者:Nozomi Saito、Yoshitomo Suhara、Masaaki Kurihara、Toshie Fujishima、Shinobu Honzawa、Hitoshi Takayanagi、Toshiro Kozono、Masahiko Matsumoto、Masayuki Ohmori、Naoki Miyata、Hiroaki Takayama、Atsushi Kittaka
    DOI:10.1021/jo0491051
    日期:2004.10.1
    A concise and efficient synthetic approach to 2α-(ω-hydroxyalkoxy)-1α,25-dihydroxyvitamin D3 (4a−c), including 2-epi-ED-71, was developed starting from d-glucose as a chiral template for the construction of the 2α-modified A-ring precursors (11a−c). It was found that the best ligand for the bovine thymus vitamin D receptor (VDR) in this series is 4b, which has 1.8 times greater binding affinity for
    简明和高效的合成方法,以2α-(ω-羟基烷氧基)-1α,25-二羟基维生素d 3(图4a - Ç),包括2-外延-ED-71,被开发从起始d -葡萄糖作为手性模板2α-修饰的A环前体(11a - c)的结构。发现该系列中牛胸腺维生素D受体(VDR)的最佳配体是4b,其对牛胸腺VDR的结合亲和力是天然激素1的1.8倍。有趣的是,诱导HL-60细胞分化4a - c的效力尽管对VDR具有很强的结合亲和力,但它几乎与1相同或比1弱。接下来,我们有兴趣的“双修饰” 1基于图4a - ç与C20-差向异构化,得到2α-(ω-羟基烷氧基)-20-外延1α,25-二羟基维生素d 3(20-外延-图4a - c)。1(20- epi - 4a - c的所有三个2α-取代的20- Epi类似物)对VDR表现出更强的结合亲和力,并通过分子建模分析了它们在VDR配体结合域中的构象。20- epi - 4a - c
  • Stereoselective Palladium-Catalyzed Approach to Vitamin D<sub>3</sub> Derivatives in Protic Medium
    作者:Diego Carballa、Rita Sigüeiro、Zaida Rodríguez-Docampo、Flavia Zacconi、Miguel A. Maestro、Antonio Mouriño
    DOI:10.1002/chem.201705656
    日期:2018.3.2
    We describe an efficient convergent synthesis of vitamin D3 metabolites and analogues. The synthetic strategy relies on a tandem Pd‐catalyzed A‐ring closure and Suzuki–Miyaura coupling to the CD‐side chain component to set directly the vitamin D triene system under protic conditions. This strategy enables rapid access to vitamin D3 and 3‐epi‐vitamin D3 metabolites and analogues modified at the side
    我们描述了维生素D 3代谢产物和类似物的有效收敛合成。合成策略依赖于串联的Pd催化的A环闭合和Suzuki-Miyaura与CD侧链成分的耦合,从而在质子条件下直接设置维生素D三烯系统。该策略可快速获取侧链修饰的维生素D 3和3-表-维生素D 3代谢物和类似物,以进行生物学评估以及结构和代谢研究。
  • Systematic studies on synthesis, structural elucidation, and biological evaluation of A-ring diastereomers of 2-methyl-1α,25-dihydroxyvitamin D3 and 20-epi-2-methyl-1α,25-dihydroxyvitamin D3
    作者:Hiroaki Takayama、Katsuhiro Konno、Toshie Fujishima、Shojiro Maki、Zhaopeng Liu、Daishiro Miura、Manabu Chokki、Seiichi Ishizuka、Connie Smith、Hector F. DeLuca、Kimie Nakagawa、Mayuko Kurobe、Toshio Okano
    DOI:10.1016/s0039-128x(00)00141-0
    日期:2001.3
    diastereomers of 2-methyl-1alpha,25-dihydroxyvitamin D(3) (2) and 20-epi-2-methyl-1alpha,25-dihydroxyvitamin D(3) (3) were synthesized by palladium-catalyzed coupling reaction of A-ring 'enyne' synthons with CD-ring portions. The A-ring synthons were rationally synthesized via a novel and practical route, starting with methyl (R)-(+)- and (S)-(-)-3-hydroxy-2-methyl-propionate, in good yields. X-ray
    通过催化合成了2-甲基-1α,25-二羟基维生素D(3)(2)和20-表-2-甲基-1α,25-二羟基维生素D(3)(3)的所有可能的A环非对映异构体。 A环“烯炔”合成子与CD环部分的偶联反应。A环合成子是通过新颖而实用的途径合理合成的,从(R)-(+)-和(S)-(-)-3-羟基-2-甲基丙酸甲酯开始,收率很高。X射线晶体学分析的2alpha-甲基-1alpha,25-二羟基维生素D(3)(2b)和构象分析的2alpha-甲基-(2b)和2beta-甲基-1alpha,25-二羟基维生素D(A环) 3)进行(2f),并对结果进行说明。如此合成的所有A环非对映异构体(2和3)均在体外和体内进行了生物学评估。生物学效力高度依赖于A环取代基的立体化学。特别是2b的维生素D受体[VDR]结合活性比天然激素高4倍,而其20受体(3b)则表现出异常高的活性,VDR结合的效力高12倍,动员7倍与
  • 3-Methyl-20-epi-vitamin d derivatives
    申请人:——
    公开号:US20040030167A1
    公开(公告)日:2004-02-12
    The object of the present invention is to synthesize vitamin D derivatives in which the 3 -position is substituted with methyl and the steric configuration at the 20 -position is epimerized. The present invention provides vitamin D derivatives of Formula ( 1 ): 1 wherein R is straight or branched alkyl optionally substituted with hydroxy.
    本发明的目的是合成维生素D衍生物,其中3位点位被甲基取代,20位点位的立体构型被使对映异构体化。本发明提供了式(1)的维生素D衍生物:其中R是直链或支链烷基,可选地被羟基取代。
  • Concise synthesis and biological activities of 2α-Alkyl- and 2α-(ω-Hydroxyalkyl)-20-epi-1α,25-dihydroxyvitamin D3
    作者:Shinobu Honzawa、Yoshitomo Suhara、Ken-ichi Nihei、Nozomi Saito、Seishi Kishimoto、Toshie Fujishima、Masaaki Kurihara、Takayuki Sugiura、Keizo Waku、Hiroaki Takayama、Atsushi Kittaka
    DOI:10.1016/s0960-894x(03)00739-x
    日期:2003.10
    We found a concise route to the Trost A-ring precursor enyne for synthesizing 2alpha-alkylated 1alpha,25-dihydroxyvitamin D-3 (1) from D-glucose. The enynes were coupled with the 20-epi-CD ring part to study the effect of the double modification of 2alpha-substitution and 20-epimerization upon biological activities of 1. The novel three analogues of 2alpha-alkyl- and four analogues of 2alpha-(omega-hydroxyalkyl)-20-epi-1alpha,25-dihydroxyvitamin D-3 (5b-d and 6a-d) showed higher binding affinity for vitamin D receptor (VDR) and more potent activity in induction of HL-60 cell differentiation than those of the natural hormone 1. (C) 2003 Elsevier Ltd. All rights reserved.
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