(R)-2-(4-chlorophenyl)-2-hydroxyacetamide | 1414859-69-0

• 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: (R)-2-(4-chlorophenyl)-2-hydroxyacetamide
• 英文别名: (2R)-2-(4-chlorophenyl)-2-hydroxyacetamide
• CAS: 1414859-69-0
• 化学式: C₈H₈ClNO₂
• 分子量: 185.61
• InChiKey: LDVLVMRFNCMVLS-SSDOTTSWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  63.3
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  (4-氯苯基)乙醛酸 在 a-无水葡萄糖酯 、 Candida parapsilosis ATCC 7330 、 氨 、 乙酰氯 作用下， 以 甲醇 、 乙腈 为溶剂， 反应 12.0h， 生成 (R)-2-(4-chlorophenyl)-2-hydroxyacetamide 、 (S)-2-(4-chlorophenyl)-2-hydroxyacetamide
  参考文献：
  名称：

  Biocatalytic reduction of α-keto amides to (R)-α-hydroxy amides using Candida parapsilosis ATCC 7330

  摘要：

  Biocatalytic reduction of primary and secondary alpha-keto amides was accomplished using whole cells of Candida parapsilosis ATCC 7330. The primary (R)-alpha-hydroxy amides were obtained in good enantiomeric excess (up to 94%) and conversion (88-99%) as compared to the secondary (R)-alpha-hydroxy amides. (C) 2012 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.cattod.2012.03.081

文献信息

• Methods for producing optically active alpha-hydroxy amides
  申请人：Ishihara Kohji

  公开号：US20050202545A1

  公开（公告）日：2005-09-15

  An objective of the present invention is to provide efficient methods for producing (R)-2-chloromandelamide with high optical purity. Another objective of the present invention is to provide novel methods for producing α-ketoamide reductases that reduce 2-chlorobenzoyl formamide to (R)-2-chloromandelamide with high optical purity, using NADPH as the coenzyme. An enzyme exhibiting high stereoselectivity was purified from a number of Saccharomyces cerevisiae enzymes with 2-chlorobenzoyl formamide-reducing activity, and the biochemical properties of the purified enzyme were analyzed. The analysis of a partial internal amino acid sequence of the purified enzyme revealed that the enzyme may be encoded by the putative open reading frame (ORF) YDL124w reported in the genome analysis. YDL124w was cloned and expressed in E. coli , and was subsequently shown to encode the α-ketoamide reductase. It was found that these resulting transformants facilitated the production of (R)-2-chloromandelamide from 2-chlorobenzoyl formamide.

  本发明的一个目的是提供生产光学纯度高的(R)-2-氯扁桃酰胺的有效方法。本发明的另一个目的是提供生产α-酮酰胺还原酶的新方法，该还原酶以 NADPH 为辅酶，将 2-氯苯甲酰甲酰胺还原成高光学纯度的(R)-2-氯扁桃酰胺。 从一些酵母菌中纯化出了一种具有高立体选择性的酶。 酵母 分析了纯化酶的生化特性。对纯化酶部分内部氨基酸序列的分析表明，该酶可能由基因组分析中报告的假定开放阅读框（ORF）YDL124w编码。YDL124w 被克隆并在 大肠杆菌 随后证明其编码α-酮酰胺还原酶。研究发现，这些转化子有助于从 2-氯苯甲酰甲酰胺中生产 (R)-2-氯扁桃酰胺。
• Biocatalytic reduction of α-keto amides to (R)-α-hydroxy amides using Candida parapsilosis ATCC 7330
  作者：Selvaraj Stella、Anju Chadha

  DOI：10.1016/j.cattod.2012.03.081

  日期：2012.12

  Biocatalytic reduction of primary and secondary alpha-keto amides was accomplished using whole cells of Candida parapsilosis ATCC 7330. The primary (R)-alpha-hydroxy amides were obtained in good enantiomeric excess (up to 94%) and conversion (88-99%) as compared to the secondary (R)-alpha-hydroxy amides. (C) 2012 Elsevier B.V. All rights reserved.