Cbz-D-Phe-OTfe | 885110-87-2

• 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: Cbz-D-Phe-OTfe
• 英文别名: 2,2,2-trifluoroethyl (2R)-3-phenyl-2-(phenylmethoxycarbonylamino)propanoate
• CAS: 885110-87-2
• 化学式: C₁₉H₁₈F₃NO₄
• 分子量: 381.351
• InChiKey: ANBJQHNBUIEPNU-MRXNPFEDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  27
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.26
• 拓扑面积：
  64.6
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  Cbz-D-Phe-OTfe 、 L-脯氨酰胺 在 cross-linked enzyme aggregate of Alcalase 作用下， 反应 16.0h， 生成 Z-D-Phe-Pro-NH2
  参考文献：
  名称：

  Enzymatic synthesis of activated esters and their subsequent use in enzyme-based peptide synthesis

  摘要：

  Chemoenzymatic peptide synthesis is potentially the most cost-efficient technology for the synthesis of short and medium-sized peptides. However, there are still some limitations when challenging peptides, e.g. containing sterically demanding acyl donors, non-proteinogenic amino acids or proline residues, are to be synthesized. To remedy these limitations, special ester moieties have been used that are specifically recognized by the enzyme, e.g. guanidinophenyl, carboxamidomethyl (Cam) or trifluoroethyl (Tfe) esters, which, unfortunately, are notoriously difficult to synthesize chemically. Herein, we demonstrate that Cam and Tfe esters are very useful for Alcalase-CLEA mediated peptide synthesis using sterically demanding and non-proteinogenic acyl donors as well as poor nucleophiles, and combinations thereof. Furthermore, these esters can be efficiently synthesized by using the lipase Cal-B or Alcalase-CLEA. Finally, it is shown that the ester synthesis by Cal-B and subsequent peptide synthesis by Alcalase-CLEA can be performed simultaneously using a two-enzyme-one-pot approach with glycolamide or 2,2,2-trifluoroethanol as additive. (C) 2011 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcatb.2011.03.012
• 作为产物：
  描述：

  甲醇 、 2,2,2-trifluoroethyl 3-phenyl-2-(phenylmethoxycarbonylamino)propanoate 在 Rhizopus javanicus lipase 作用下， 以 异丙醚 为溶剂， 生成 Cbz-D-Phe-OTfe 、 N-(苄氧羰基)-L-苯丙氨酸甲酯 、 Z-PheOCH2CF3 、 苄氧羰基-D-苯基丙氨酸甲酯
  参考文献：
  名称：

  Resolution of non-proteinogenic amino acids via microbial lipase-catalyzed enantioselective transesterification

  摘要：

  通过伯克霍尔德氏菌脂肪酶催化的2,2,2-三氟乙基酯的对映体选择性酯化反应，在二异丙基醚中以甲醇为亲核体，分离出了一些带有脂肪族侧链的非蛋白源氨基酸，其对映体选择性为中等到良好（E = 15-42）。关键词：非蛋白源氨基酸；微生物脂肪酶；伯克霍尔德氏菌脂肪酶；2,2,2-三氟乙基酯；对映选择性酯交换反应；对映选择性。

  DOI：

  10.1139/v07-154

文献信息

• Enzymatic synthesis of activated esters and their subsequent use in enzyme-based peptide synthesis
  作者：Timo Nuijens、Claudia Cusan、Annette C.H.M. Schepers、John A.W. Kruijtzer、Dirk T.S. Rijkers、Rob M.J. Liskamp、Peter J.L.M. Quaedflieg

  DOI：10.1016/j.molcatb.2011.03.012

  日期：2011.8

  Chemoenzymatic peptide synthesis is potentially the most cost-efficient technology for the synthesis of short and medium-sized peptides. However, there are still some limitations when challenging peptides, e.g. containing sterically demanding acyl donors, non-proteinogenic amino acids or proline residues, are to be synthesized. To remedy these limitations, special ester moieties have been used that are specifically recognized by the enzyme, e.g. guanidinophenyl, carboxamidomethyl (Cam) or trifluoroethyl (Tfe) esters, which, unfortunately, are notoriously difficult to synthesize chemically. Herein, we demonstrate that Cam and Tfe esters are very useful for Alcalase-CLEA mediated peptide synthesis using sterically demanding and non-proteinogenic acyl donors as well as poor nucleophiles, and combinations thereof. Furthermore, these esters can be efficiently synthesized by using the lipase Cal-B or Alcalase-CLEA. Finally, it is shown that the ester synthesis by Cal-B and subsequent peptide synthesis by Alcalase-CLEA can be performed simultaneously using a two-enzyme-one-pot approach with glycolamide or 2,2,2-trifluoroethanol as additive. (C) 2011 Elsevier B.V. All rights reserved.
• Resolution of non-proteinogenic amino acids via microbial lipase-catalyzed enantioselective transesterification
  作者：Toshifumi Miyazawa、Motoe Mio、Yuko Watanabe、Takashi Yamada

  DOI：10.1139/v07-154

  日期：2008.3.1

  A number of non-proteinogenic amino acids bearing aliphatic side chains were resolved with moderate to good enantioselectivities (E = 15–42) through the Burkholderia cepacia lipase-catalyzed enantioselective transesterification of the 2,2,2-trifluoroethyl esters of their N-benzyloxycarbonyl derivatives with methanol as a nucleophile in diisopropyl ether.Key words: non-proteinogenic amino acids, microbial lipases, Burkholderia cepacia lipase, 2,2,2-trifluoroethyl ester, enantioselective transesterification, enantioselectivity.

  通过伯克霍尔德氏菌脂肪酶催化的2,2,2-三氟乙基酯的对映体选择性酯化反应，在二异丙基醚中以甲醇为亲核体，分离出了一些带有脂肪族侧链的非蛋白源氨基酸，其对映体选择性为中等到良好（E = 15-42）。关键词：非蛋白源氨基酸；微生物脂肪酶；伯克霍尔德氏菌脂肪酶；2,2,2-三氟乙基酯；对映选择性酯交换反应；对映选择性。