(4S)-isobutyl-(5S)-((4S)-methoxycarbonyl-1-methyl-pyrrolidin-(3S)-yl)-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester | 864238-93-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯烷类
• 英文名称: (4S)-isobutyl-(5S)-((4S)-methoxycarbonyl-1-methyl-pyrrolidin-(3S)-yl)-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester
• 英文别名: tert-butyl (4S,5S)-5-[(3S,4S)-4-methoxycarbonyl-1-methylpyrrolidin-3-yl]-2,2-dimethyl-4-(2-methylpropyl)-1,3-oxazolidine-3-carboxylate
• CAS: 864238-93-7
• 化学式: C₂₁H₃₈N₂O₅
• 分子量: 398.543
• InChiKey: NPXKTXVATXVQRK-NCOADZHNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  28
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.9
• 拓扑面积：
  68.3
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  (4S)-isobutyl-(5S)-((4S)-methoxycarbonyl-1-methyl-pyrrolidin-(3S)-yl)-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester 在 sodium hydroxide 、 benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate 、 N,N-二异丙基乙胺 、 三氟乙酸 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 4.0h， 生成 tert-butyl N-[(2S)-1-[[(1S,2S)-1-[(3S,4S)-4-[[(2S)-1-(butylamino)-3-methyl-1-oxobutan-2-yl]carbamoyl]-1-methylpyrrolidin-3-yl]-1-hydroxy-4-methylpentan-2-yl]amino]-4-methylsulfanyl-1-oxobutan-2-yl]carbamate
  参考文献：
  名称：

  基于结构的设计，合成和碳环和杂环拟肽的memapsin 2（BACE）抑制活性。

  摘要：

  基于BACE的Tang-Ghosh七肽抑制剂1（OM99-2）的X射线晶体结构的分子建模，导致设计和合成了一系列受约束的P（1）'类似物。1个环戊烷环结合在P（1）'Ala甲基和该链的相邻亚甲基碳原子上。在P（2）'-P（4）'位点的逐步截短导致有效的截短的类似物5，对组织蛋白酶D具有良好的选择性。使用相同的骨架替换概念，一系列环戊烷，环戊酮，四氢呋喃，吡咯烷和吡咯烷酮合成的类似物在P和P'位点有相当大的变化。环戊酮和2-吡咯烷酮类似物45和57显示出较低的nM BACE抑制作用。

  DOI：

  10.1021/jm050142+
• 作为产物：
  描述：

  (4S)-isobutyl-(5S)-((4R)-methoxycarbonyl-1-methyl-pyrrolidin-(3S)-yl)-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester 在 sodium methylate 作用下， 以 甲醇 为溶剂， 反应 5.0h， 以99%的产率得到(4S)-isobutyl-(5S)-((4S)-methoxycarbonyl-1-methyl-pyrrolidin-(3S)-yl)-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester
  参考文献：
  名称：

  Stereoselective Synthesis of Constrained Azacyclic Hydroxyethylene Isosteres as Aspartic Protease Inhibitors: Dipolar Cycloaddition and Related Methodologies toward Branched Pyrrolidine and Pyrrolidinone Carboxylic Acids

  摘要：

  [GRAPHICS]The synthesis of three vicinally substituted azacyclic carboxylic acids in enantiopure form was achieved from a common (x-amino aldehyde originating from (L)-leucine. Pyrrolidines and pyrrolidinones were elaborated from a,beta-unsaturated gamma-hydroxy-delta-amino acids via azomethine ylide 1,3dipolar addition and conjugate addition/cyclization strategies, respectively. The azacyclic amino acids were incorporated in a pseudopeptide now encompassing a hydroxyethylene isostere. Low nanomolar inhibition of BACE1, an enzyme implicated in the cascade of events leading to plaque formation in Alzheimer's disease, was found with a pyrrolidinone analogue.

  DOI：

  10.1021/jo050740w

文献信息

• Stereoselective Synthesis of Constrained Azacyclic Hydroxyethylene Isosteres as Aspartic Protease Inhibitors: Dipolar Cycloaddition and Related Methodologies toward Branched Pyrrolidine and Pyrrolidinone Carboxylic Acids
  作者：Stephen Hanessian、Hongying Yun、Yihua Hou、Marina Tintelnot-Blomley

  DOI：10.1021/jo050740w

  日期：2005.8.1

  [GRAPHICS]The synthesis of three vicinally substituted azacyclic carboxylic acids in enantiopure form was achieved from a common (x-amino aldehyde originating from (L)-leucine. Pyrrolidines and pyrrolidinones were elaborated from a,beta-unsaturated gamma-hydroxy-delta-amino acids via azomethine ylide 1,3dipolar addition and conjugate addition/cyclization strategies, respectively. The azacyclic amino acids were incorporated in a pseudopeptide now encompassing a hydroxyethylene isostere. Low nanomolar inhibition of BACE1, an enzyme implicated in the cascade of events leading to plaque formation in Alzheimer's disease, was found with a pyrrolidinone analogue.
• Structure-Based Design, Synthesis, and Memapsin 2 (BACE) Inhibitory Activity of Carbocyclic and Heterocyclic Peptidomimetics
  作者：Stephen Hanessian、Hongying Yun、Yihua Hou、Gaoqiang Yang、Malken Bayrakdarian、Eric Therrien、Nicolas Moitessier、Silvio Roggo、Siem Veenstra、Marina Tintelnot-Blomley、Jean-Michel Rondeau、Christian Ostermeier、André Strauss、Paul Ramage、Paolo Paganetti、Ulf Neumann、Claudia Betschart

  DOI：10.1021/jm050142+

  日期：2005.8.1

  BACE led to the design and synthesis of a series of constrained P(1)' analogues. A cyclopentane ring was incorporated in 1 spanning the P(1)' Ala methyl group and the adjacent methylene carbon atom of the chain. Progressive truncation at the P(2)'-P(4)' sites led to a potent truncated analogue 5 with good selectivity over Cathepsin D. Using the same backbone replacement concept, a series of cyclopentane

  基于BACE的Tang-Ghosh七肽抑制剂1（OM99-2）的X射线晶体结构的分子建模，导致设计和合成了一系列受约束的P（1）'类似物。1个环戊烷环结合在P（1）'Ala甲基和该链的相邻亚甲基碳原子上。在P（2）'-P（4）'位点的逐步截短导致有效的截短的类似物5，对组织蛋白酶D具有良好的选择性。使用相同的骨架替换概念，一系列环戊烷，环戊酮，四氢呋喃，吡咯烷和吡咯烷酮合成的类似物在P和P'位点有相当大的变化。环戊酮和2-吡咯烷酮类似物45和57显示出较低的nM BACE抑制作用。