N-benzoyl-O-tert-butyl-L-tyrosine methyl ester | 1562416-39-0

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: N-benzoyl-O-tert-butyl-L-tyrosine methyl ester
• 英文别名: methyl (2S)-2-benzamido-3-[4-[(2-methylpropan-2-yl)oxy]phenyl]propanoate
• CAS: 1562416-39-0
• 化学式: C₂₁H₂₅NO₄
• 分子量: 355.434
• InChiKey: CZSJYGLCVMTKMA-SFHVURJKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  26
• 可旋转键数：
  8
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  64.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  O-叔丁基-L-酪氨酸 在 Boc-Dmaa-D-pro-Aic-Ser(Bn)-NMe₂ 、 溶剂黄146 、 sodium hydroxide 作用下， 以 二氯甲烷 、 水 、 甲苯 为溶剂， 反应 46.0h， 生成 N-benzoyl-O-tert-butyl-L-tyrosine methyl ester 、 methyl (R)-2-benzamido-3-(4-(tert-butoxy)phenyl)propanoate
  参考文献：
  名称：

  Peptide-Catalyzed Conversion of Racemic Oxazol-5(4H)-ones into Enantiomerically Enriched α-Amino Acid Derivatives

  摘要：

  We report the development and optimization of a tetrapeptide that catalyzes the methanolytic dynamic kinetic resolution of oxazol-5(4H)-ones (azlactones) with high levels of enantioinduction. Oxazolones possessing benzylic-type substituents were found to perform better than others, providing methyl ester products in 88:12 to 98:2 er. The mechanism of this peptide-catalyzed process was investigated through truncation studies and competition experiments. High-field NOESY analysis was performed to elucidate the solution-phase structure of the peptide, and we present a plausible model for catalysis.

  DOI：

  10.1021/jo402828f

文献信息

• Two-Chamber Aminocarbonylation of Aryl Bromides and Triflates Using Amino Acids as Nucleophiles
  作者：Jens Lindman、Anubha Yadav、Johan Gising、Mats Larhed

  DOI：10.1021/acs.joc.3c00972

  日期：2023.9.15

  A palladium(0)-catalyzed aminocarbonylation reaction employing molybdenum hexacarbonyl as a carbon monoxide precursor for the production of N-capped amino acids using aryl and heteroaryl bromides and triflates is reported. The carbon monoxide is formed ex situ through the use of a two-chamber system, where carbon monoxide generated in one chamber is free to diffuse over and be consumed in the other

  据报道，使用六羰基钼作为一氧化碳前体，使用芳基和杂芳基溴化物和三氟甲磺酸酯生产 N-封端氨基酸，钯 (0) 催化的氨基羰基化反应。一氧化碳是通过使用双室系统异位形成的，其中一个室中产生的一氧化碳可以自由扩散到另一个钯催化反应室中并被消耗。使用该方法，利用两个系列的芳基溴和芳基三氟甲磺酸酯合成了 21 个 N-封端氨基酸，分离产率在 40% 至 91% 之间。
• Peptide-Catalyzed Conversion of Racemic Oxazol-5(4<i>H</i>)-ones into Enantiomerically Enriched α-Amino Acid Derivatives
  作者：Anthony J. Metrano、Scott J. Miller

  DOI：10.1021/jo402828f

  日期：2014.2.21

  We report the development and optimization of a tetrapeptide that catalyzes the methanolytic dynamic kinetic resolution of oxazol-5(4H)-ones (azlactones) with high levels of enantioinduction. Oxazolones possessing benzylic-type substituents were found to perform better than others, providing methyl ester products in 88:12 to 98:2 er. The mechanism of this peptide-catalyzed process was investigated through truncation studies and competition experiments. High-field NOESY analysis was performed to elucidate the solution-phase structure of the peptide, and we present a plausible model for catalysis.