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(20S)-3α,5-cyclo-20-formyl-6β-methoxy-5α-pregnane | 32249-55-1

中文名称
——
中文别名
——
英文名称
(20S)-3α,5-cyclo-20-formyl-6β-methoxy-5α-pregnane
英文别名
3α,5-cyclopregnan-6β-ol-20-one methyl ether;6β-methoxy-3α,5α-cyclopregnan-20-one;6β-methoxy-3α,5-cyclo-5α-pregnan-20-one;6β-methoxy-3α,5-cyclopregnan-20-one;1-((1aR,3aR,3bS,5aS,6S,8aS,8bS,10R,10aR)-10-methoxy-3a,5a-dimethylhexadecahydrocyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)ethan-1-one;3α,5-Cyclopregnan-6β-ol-20-onmethylether;1-[(1S,2R,5R,7R,8R,10S,11S,14S,15S)-8-methoxy-2,15-dimethyl-14-pentacyclo[8.7.0.02,7.05,7.011,15]heptadecanyl]ethanone
(20S)-3α,5-cyclo-20-formyl-6β-methoxy-5α-pregnane化学式
CAS
32249-55-1
化学式
C22H34O2
mdl
——
分子量
330.511
InChiKey
PJHBKOQWGPXVAP-FGDJCKERSA-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:
    419.8±28.0 °C(Predicted)
  • 密度:
    1.08±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    4.9
  • 重原子数:
    24
  • 可旋转键数:
    2
  • 环数:
    5.0
  • sp3杂化的碳原子比例:
    0.95
  • 拓扑面积:
    26.3
  • 氢给体数:
    0
  • 氢受体数:
    2

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

  • Electroreductive Olefin–Ketone Coupling
    作者:Pengfei Hu、Byron K. Peters、Christian A. Malapit、Julien C. Vantourout、Pan Wang、Jinjun Li、Lucas Mele、Pierre-Georges Echeverria、Shelley D. Minteer、Phil S. Baran
    DOI:10.1021/jacs.0c11214
    日期:2020.12.16
    A user-friendly approach is presented to sidestep the venerable Grignard addition to unactivated ketones to access tertiary alcohols by reversing the polarity of the disconnection. In this work a ketone instead acts as a nucleophile when adding to simple unactivated olefins to accomplish the same overall transformation. The scope of this coupling is broad as enabled using an electrochemical approach
    提出了一种用户友好的方法,通过反转断开的极性来避开古老的格氏加成法,以获取未活化酮的叔醇。在这项工作中,当加入简单的未活化烯烃以完成相同的整体转化时,酮反而充当亲核试剂。这种耦合的范围很广,因为使用电化学方法可以实现,并且反应是可扩展的、化学选择性的,并且不需要排除空气或水的预防措施。多项应用证明了多步合成反应的简化性质,机理研究指出了一种直观的机制,让人联想到其他化学还原剂,如 SmI2(不能完成相同的反应)。
  • [EN] COMPOSITIONS AND METHODS FOR TREATING CNS DISORDERS<br/>[FR] COMPOSITIONS ET MÉTHODES DE TRAITEMENT DE TROUBLES DU SYSTÈME NERVEUX CENTRAL
    申请人:SAGE THERAPEUTICS INC
    公开号:WO2020264495A1
    公开(公告)日:2020-12-30
    Provided herein is a compound of Formula (1-I): or a pharmaceutically acceptable salt thereof, wherein R2a, R2b, R3, R4a, R4b, R5, R6a, R6b, R11a, R11b, R16a, R16b, R19, R18, X, q, r, s, t, u, and n are defined herein. Also provided herein are pharmaceutical compositions comprising a compound of Formula (1-I) and methods of using the compounds, e.g, in the treatment of CNS -related disorders.
    本文提供的是Formula(1-I)的化合物或其药学上可接受的盐,其中R2a、R2b、R3、R4a、R4b、R5、R6a、R6b、R11a、R11b、R16a、R16b、R19、R18、X、q、r、s、t、u和n在此定义。本文还提供了包含Formula(1-I)化合物的药物组合物及使用这些化合物的方法,例如用于治疗与中枢神经系统相关的疾病。
  • Studies on steroids. XLV. Synthesis of the four stereoisomers of 20,22-dihydroxycholesterol.
    作者:MASUO MORISAKI、SUSUMU SATO、NOBUO IKEKAWA
    DOI:10.1248/cpb.25.2576
    日期:——
    The four stereoisomers of 20, 22-dihydroxycholesterol 9, 10, 17 and 19 were synthesized from pregnenolone. Vinylation of the 3, 5-cyclo derivative 1 of pregnenolone gave the [20S]-carbinol 2, which was then oxidized with m-chloroperbenzoic acid to afford the [22S]-22, 23-epoxide 3 and its [22R]-isomer 4 (7 : 2). Reaction of 3 and 4 with i-Bu2CuLi followed by acid treatment yielded 20R, 22S-dihydroxycholesterol 9 and its 20R, 22R-isomer 10, respectively. The latter triol 10 was more effectively prepared by a Grignard reaction on the [20S]-20-formyl-carbinol 14, which was derived from pregnenolone THP ether 12, through the 1, 3-dithiane derivative 13. Oxidation of 20-dehydrocholesterol acetate 16 with OsO4 gave stereoselectively the 20S, 22S-glycol 17 (R=Ac). Treatment 17 (R=Ac) with N-chlorosuccinimide-dimethylsulfide followed by reduction with LiAlH4 afforded 20S, 22R-dihydroxycholesterol 19 together with the 20S, 22S-isomer 17 (R=H) (3 : 2). Acid-catalyzed epoxide opening reactions of 20, 22-epoxycholesterols were also discussed.
    从孕激素合成了四种立体异构体的20, 22-二羟基胆固醇9、10、17和19。孕激素的3, 5-环烯衍生物1经过乙烯化反应得到[20S]-卡宾醇2,随后用对氯过苯甲酸氧化得到[22S]-22, 23-环氧化物3及其[22R]-异构体4(比例7:2)。3和4与i-Bu2CuLi反应后,经酸处理分别得到20R, 22S-二羟基胆固醇9及其20R, 22R-异构体10。后者三醇10更有效的合成方式是通过对[20S]-20-甲酰基卡宾醇14进行Grignard反应,14源自孕激素THP醚12,通过1, 3-二硫烷衍生物13合成。用四氧化锇对20-脱氢胆固醇醋酸酯16氧化,选择性地得到20S, 22S-醇17(R=Ac)。用N-氯丁二酰亚胺-二甲基硫化物处理醇17(R=Ac),再用LiAlH4还原,得到20S, 22R-二羟基胆固醇19及20S, 22S-异构体17(R=H)(比例3:2)。还讨论了20, 22-环氧胆固醇的酸催化开环反应。
  • Synthesis and structure elucidation of a novel ecdysteroid, gerardiasterone
    作者:Toshio Honda、Hironao Takada、Shigehiro Miki、Masayoshi Tsubuki
    DOI:10.1016/s0040-4039(00)61409-0
    日期:1993.12
    The structure of a novel ecdysteroid, gerardiasterone, is elucidated as 2a by its synthesis employing a diastereoselective dihydroxylation of the E-olefin 22 as a key step.
    通过将E-烯烃22的非对映选择性二羟基化作为关键步骤,通过合成其新蜕皮类固醇Gerardiasterone的结构为2a。
  • Synthesis and structural elucidation of a new zooecdysteroid gerardiasterone
    作者:Masayoshi Tsubuki、Hironao Takada、Tadashi Katoh、Shigehiro Miki、Toshio Honda
    DOI:10.1016/0040-4020(96)00897-6
    日期:1996.11
    The first synthesis of a new zooecdysteroid gerardiasterone was achieved in a diastereoselective manner employing asymmetric dihydroxylation of the E-olefin 34 in the presence of DHQ-CLB as a chiral ligand. This synthesis unambiguously confirmed the structure of gerardiasterone as (20R,22R,23S)-2β,3β,14α,20,22,23,25-heptahydroxy-5β-cholest-7-en-6-one (2a).
    在DHQ-CLB作为手性配体的情况下,采用E-烯烃34的不对称二羟基化,以非对映选择性的方式实现了新的动物蜕皮类甾醇gerardiasterone的首次合成。该合成确认明确的gerardiasterone结构为(20 - [R,22 - [R,23小号)-2 β,3 β,14 α,20,22,23,25-heptahydroxy-5 β -cholest -7-烯-6-一(2a)。
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