(2R)-[(1S)-1-(dibenzylamino)ethyl]oxirane | 127927-42-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (2R)-[(1S)-1-(dibenzylamino)ethyl]oxirane
• 英文别名: (1R)-[1'(S)-(dibenzylamino)ethyl]oxirane；(2R)-[1'(S)-(dibenzylamino)ethyl]oxirane；(2R,1'S)-2-(1-dibenzylaminoethyl)epoxide；(1S)-N,N-dibenzyl-1-[(2R)-oxiran-2-yl]ethanamine；syn-(2R,1'S)-2-(1-dibenzylaminomethyl)epoxide
• CAS: 127927-42-8
• 化学式: C₁₈H₂₁NO
• 分子量: 267.371
• InChiKey: QGFXKSJBQYKAPR-YJBOKZPZSA-N

物化性质

• 沸点：
  365.1±17.0 °C(Predicted)
• 密度：
  1.106±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  20
• 可旋转键数：
  6
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  15.8
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (2R)-[(1S)-1-(dibenzylamino)ethyl]oxirane 在 ammonium cerium (IV) nitrate 作用下， 以 水 、 乙腈 为溶剂， 反应 3.5h， 生成 (4S,5S)-3-benzyl-5-(hydroxymethyl)-4-methyloxazolidin-2-one
  参考文献：
  名称：

  Stereoselective divergent synthesis of 1,2-aminoalcohol-containing heterocycles from a common chiral nonracemic building block

  摘要：

  gamma-N,N-Dibenzylamino-beta-hydroxysulfoxide 1 proved to be an excellent chiral building block for the synthesis of a range of 1,2-amino alcohol-containing heterocycles. Thus, I was converted into 4,5-disubstuted oxazolidin-2-one 4 and aminoepoxides 2 and 3. Aminoepoxide 2 proved to be an excellent precursor to access oxazolidin-2-one 5 and azetidin-3-ol 6. Finally, 2 was used as a key intermediate that allowed the development of a divergent strategy to access cis-2-methyl-6-substituted piperidin-3-ol alkaloids. (+)-Deoxocassine 7 and a C-6 ethyl analogue 8 were prepared to illustrate this approach and to demonstrate that this strategy should be adaptable to the production of other members of this alkaloid family. (C) 2015 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2015.11.008
• 作为产物：
  描述：

  (S)-2-二苄基氨基丙醛 在 三氢化钐 、 sodium hydride 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 0.83h， 生成 (2R)-[(1S)-1-(dibenzylamino)ethyl]oxirane
  参考文献：
  名称：

  Iodomethylation of Chiral α-Amino Aldehydes by Means of Samarium/Diiodomethane. Application to the Synthesis of Various Enantiomerically Pure Compounds

  摘要：

  Chiral iodohydrins 2 have been obtained from alpha-amino aldehydes 1 and Sm/CH2I2. Treatment of compound 2 with acetic anhydride, NaH, or AgBF4 affords, with high diastereoselectivity, O-protected 3-(dibenzylamino)-1-iodoalkan-2-ol 3, amino epoxides 4, or azetidinium salts 5, respectively. The synthesis of enantiomerically pure allylamines 6 is also described by metallation of 3 with zinc. The reaction of a-amino aldehydes 1 with Sm/CH2I2 and further treatment with organocuprates affords chiral amino alcohols 7 in a one-pot process.

  DOI：

  10.1021/jo970318i

文献信息

• A Route to “all-cis” 2-Methyl-6-Substituted Piperidin-3-ol Alkaloids from syn-(2R,1′S)-2-(1-Dibenzylaminomethyl)epoxide: Rapid Total Synthesis of (+)-Deoxocassine
  作者：Pierre-Yves Géant、Jean Martínez、Xavier J. Salom-Roig

  DOI：10.1002/ejoc.201101333

  日期：2012.1

  to the synthesis of two cis-2-methyl-6-substituted piperidin-3-ols is described. syn-(2R,1′S)-2-(1-Dibenzylaminomethyl) epoxide (13) was used as common building block. The key step involved oxirane ring opening of 13 by the nucleophilic lithium aza-enolate of hydrazones 12a and 12b. Subsequent hydrazone hydrolysis and intramolecular reductive amination afforded the alkaloid (+)-deoxocassine and a new

  描述了导致合成两个顺-2-甲基-6-取代的哌啶-3-醇的一般策略。syn-(2R,1'S)-2-(1-Dibenzylaminomethyl) epoxide (13) 用作常见的结构单元。关键步骤涉及腙12a和12b的亲核氮杂-烯醇锂使13的环氧乙烷开环。随后的腙水解和分子内还原胺化以良好的产率提供了生物碱 (+)-deoxocassine 和该物质的新 C-6 乙基类似物。
• Novel Bicyclic Pyridinones
  申请人：Pfizer Inc.

  公开号：US20140088111A1

  公开（公告）日：2014-03-27

  Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.

  所述化合物及其药用可接受盐已被披露，其中所述化合物具有规范中定义的Formula I结构。相应的药用组合物、治疗方法、合成方法和中间体也已被披露。
• Preparation of Aminoalkyl Chlorohydrin Hydrochlorides:  Key Building Blocks for Hydroxyethylamine-Based HIV Protease Inhibitors
  作者：Pierre L. Beaulieu、Dominik Wernic

  DOI：10.1021/jo960109i

  日期：1996.1.1

  N-dibenzyl-alpha-amino aldehydes reacted with (chloromethyl)lithium, generated in situ from bromochloromethane and lithium metal, to give predominantly erythro aminoalkyl epoxides. Treatment of the crude epoxides with aqueous hydrochloric acid gave crystalline (2S,3S)-N,N-dibenzylamino chlorohydrin hydrochlorides in 32-56% overall yield and high isomeric purity. These compounds are versatile synthetic intermediates

  对映体纯的N，N-二苄基-α-氨基乙醛与（氯甲基）锂发生反应，从溴氯甲烷和锂金属就地生成，主要生成赤型氨基烷基环氧化物。用盐酸水溶液处理粗环氧化合物，得到结晶（2S，3S）-N，N-二苄基氨基氯醇盐酸盐，总产率为32-56％，且异构体纯度高。这些化合物是用于直接或通过转化为相应的N-Boc-（2S，3S）-氨基烷基环氧化物制备基于羟乙胺的HIV蛋白酶抑制剂的通用合成中间体。所描述的方法不使用危险的试剂或中间体，不需要色谱纯化，因此适合制备大量这些通用模块。
• The first direct preparation of chiral functionalised ketones and their synthetic uses
  作者：José Barluenga、Beatriz BaragañA、Alejandro Alonso、José M. Concellón

  DOI：10.1039/c39940000969

  日期：——

  Almost enantiomerically pure halogenated α-hydroxy and α-amino ketones can be prepared from O-protected lactates and tribenzylated alanine, respectively; whilst amino ketones 3g have also been transformed into the amino epoxide 7 with high diastereoselectivity.

  几乎纯镜像异构体的卤代α-羟基和α-氨基酮分别可以通过O-保护的乳酸盐和三苄基化的丙氨酸制备；同时，氨基酮3g也已高度立体选择性地转化为氨基环氧化物7。
• Protective group tuning in the stereoselective conversion of α-amino aldehydes into aminoalkyl epoxides
  作者：M.T. Reetz、J. Binder

  DOI：10.1016/s0040-4039(01)80584-0

  日期：1989.1

  Sulfonium and arsonium ylides of the type CH2=S(CH3)2 and CH2=As(Ph)3 react with doubly protected α-amino aldehydes derived from amino acids to form aminoalkyl epoxides /, diastereofacial selectivity ranging between 86:14 and 95:5.

  CH 2 = S（CH 3）2和CH 2 = As（Ph）3类型的ulf和砷化物与衍生自氨基酸的双重保护的α-氨基醛反应形成氨基烷基环氧化物/ ，非对映选择性在86:14之间和95：5。