N-Boc-L-Leu-L-Ala-pNA | 85697-77-4

• 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-Boc-L-Leu-L-Ala-pNA
• 英文别名: Nα-Boc-L-Leu-L-Ala-pNA；Boc-Leu-Ala-pNA；tert-butyl N-[(2S)-4-methyl-1-[[(2S)-1-(4-nitroanilino)-1-oxopropan-2-yl]amino]-1-oxopentan-2-yl]carbamate
• CAS: 85697-77-4
• 化学式: C₂₀H₃₀N₄O₆
• 分子量: 422.481
• InChiKey: BMQJCYUITIAJCM-BBRMVZONSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  30
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  142
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  N-Boc-L-Leu-L-Ala-pNA 在 盐酸 、 1-羟基苯并三唑 、 三乙胺 、 N,N'-二环己基碳二亚胺 作用下， 以 1,4-二氧六环 、 N,N-二甲基甲酰胺 为溶剂， 反应 1.34h， 生成 H-Tyr-Leu-Ala-pNA*HCl
  参考文献：
  名称：

  Synthesis of chromogenic substrates specific for human spleen fibrinolytic proteinase (SFP) and human leukocyte elastase (LE).

  摘要：

  通过常规方法合成了多种肽苯胺，目的是获得人类脾纤维蛋白溶解酶（SFP）和人类白细胞弹性蛋白酶（LE）的特定底物，以便比较SFP和LE的底物特异性。研究发现，琥珀酰三肽对硝基苯胺（Suc-Tyr-Leu-X-pNA）中的P1 Val化合物在SFP和LE的水解反应中表现出最高的kcat/Km值，然而，四肽Suc-Ala-Tyr-Leu-Val-pNA（SFP和LE的水解反应的kcat/Km值（M-1S-1）：分别为84000和48000）是SFP和LE的首选显色底物，因为它具有在缓冲液中的高溶解性和适中的kcat/Km值。发现SFP的底物特异性与LE的相似。

  DOI：

  10.1248/cpb.30.4060
• 作为产物：
  描述：

  Z-L-alanyl-p-nitroanilide 在 氢溴酸 、 1-羟基苯并三唑 、 N,N'-二环己基碳二亚胺 作用下， 以 溶剂黄146 、 N,N-二甲基甲酰胺 为溶剂， 生成 N-Boc-L-Leu-L-Ala-pNA
  参考文献：
  名称：

  Synthesis of chromogenic substrates specific for human spleen fibrinolytic proteinase (SFP) and human leukocyte elastase (LE).

  摘要：

  通过常规方法合成了多种肽苯胺，目的是获得人类脾纤维蛋白溶解酶（SFP）和人类白细胞弹性蛋白酶（LE）的特定底物，以便比较SFP和LE的底物特异性。研究发现，琥珀酰三肽对硝基苯胺（Suc-Tyr-Leu-X-pNA）中的P1 Val化合物在SFP和LE的水解反应中表现出最高的kcat/Km值，然而，四肽Suc-Ala-Tyr-Leu-Val-pNA（SFP和LE的水解反应的kcat/Km值（M-1S-1）：分别为84000和48000）是SFP和LE的首选显色底物，因为它具有在缓冲液中的高溶解性和适中的kcat/Km值。发现SFP的底物特异性与LE的相似。

  DOI：

  10.1248/cpb.30.4060

文献信息

• Atlantic Cod Trypsin-Catalyzed Peptide Synthesis with Inverse Substrates as Acyl Donor Components
  作者：Tomoyoshi Fuchise、Hideki Kishimura、Zhi-hong Yang、Mareshige Kojoma、Eiko Toyota、Haruo Sekizaki

  DOI：10.1248/cpb.58.484

  日期：——

  Atlantic cod trypsin-catalyzed peptide synthesis has been studied by using p-amidino- and p-guanidinophenyl esters of N-(tert-butyloxycarbonyl)amino acid as acyl donor components. The reaction temperature was optimized at 0 degrees C. The method was shown to be successful as effectively for synthesizing the peptide and useful for preparing dipeptide between D-amino acid with D-amino acid and beta-amino

  大西洋鳕鱼胰蛋白酶催化的肽合成已通过使用N-（叔丁氧羰基羰基）氨基酸的对-基和对胍基苯基酯作为酰基供体组分进行了研究。反应温度在0摄氏度下进行了优化。该方法成功地合成了肽，成功地用于制备D-氨基酸与D-氨基酸和β-氨基酸与β-氨基酸之间的二肽。 。所得产物的酶水解可忽略不计。
• Trypsin-Catalyzed Synthesis of Dipeptide Containing .ALPHA.-Aminoisobutylic Acid Using p- and m-(Amidinomethyl)phenyl Esters as Acyl Donor
  作者：Haruo Sekizaki、Kunihiko Itoh、Akiyoshi Shibuya、Eiko Toyota、Mareshige Kojoma、Kazutaka Tanizawa

  DOI：10.1248/cpb.56.688

  日期：——

  Two series of inverse substrates, p- and m-(amidinomethyl)phenyl esters derived from N-(tert-butyloxycarbonyl)amino acid, were prepared as acyl donor components for enzymatic peptide synthesis. They were found to be readily coupled with an acyl acceptor such as L-alanine p-nitroanilide to produce dipeptide. An alpha-aminoisobutyric acid containing dipeptide was especially obtained in satisfactory yield

  制备了两种相反的底物，衍生自N-（叔丁氧基羰基）氨基酸的对-和间-（m基甲基）苯基酯，作为用于酶促肽合成的酰基供体组分。发现它们易于与酰基受体如L-丙氨酸对硝基苯胺偶联以产生二肽。尤其以令人满意的产率获得了含有二肽的α-氨基异丁酸。灰链霉菌胰蛋白酶比牛胰蛋白酶更有效。通过改变有机溶剂，pH值和酰基受体浓度研究了偶联反应的最佳条件。发现所得产物的酶水解可忽略不计。
• Trypsin-Catalyzed Peptide Synthesis with Various p-Guanidinophenyl Esters as Acyl Donors.
  作者：Haruo SEKIZAKI、Kunihiko ITOH、Eiko TOYOTA、Kazutaka TANIZAWA

  DOI：10.1248/cpb.44.1585

  日期：——

  Trypsin-catalyzed peptide synthesis has been studied by using p-guanidinophenyl esters of N alpha-(tert-butyloxycarbonyl)amino acid and peptide as acyl donor components. The reaction conditions were optimized for organic solvents, pH, and concentration of acceptor. The method was especially useful for the preparation of various peptides containing D-amino acids. The enzymatic hydrolysis of the resulting

  通过使用Nα-（叔丁氧羰基羰基）氨基酸的对胍基苯基酯和肽作为酰基供体组分，研究了胰蛋白酶催化的肽合成。反应条件针对有机溶剂，pH和受体浓度进行了优化。该方法对于制备各种包含D-氨基酸的肽特别有用。所得产物的酶水解可忽略不计。
• Methyltrypsin-Catalyzed Peptide Coupling: Comparison of Alkyl Ester and Guanidinophenyl Ester Derivatives as Acyl Donor Component
  作者：Kunihiko Itoh、Haruo Sekizaki、Eiko Toyota、Kazutaka Tanizawa

  DOI：10.1006/bioo.1997.1076

  日期：1997.10

  Methyltrypsin-catalyzed peptide synthesis has been studied by using conventional alkyl ester and p-guanidinophenyl ester derivatives of alpha-amino acid as the acyl donor component. They were found to be coupled with alpha-amino acid derivatives (acyl acceptor component) to produce dipeptide. The behavior of methyltrypsin toward both the substrates has been studied. (C) 1997 Academic Press.
• Synthesis of chromogenic substrates specific for human spleen fibrinolytic proteinase (SFP) and human leukocyte elastase (LE).
  作者：YOSHIO OKADA、YUKO TSUDA、AKIO HIRATA、YOKO NAGAMATSU、UTAKO OKAMOTO

  DOI：10.1248/cpb.30.4060

  日期：——

  Various peptide anilides were synthesized by a conventional method with the object of obtaining specific substrates for human spleen fibrinolytic proteinase (SFP) and human leukocyte elastase (LE) in order to compare the substrate specificity of SFP with that of LE. It was found that the P1 Val compound among succinyl tripeptide p-nitroanilides (Suc-Tyr-Leu-X-pNA) exhibited the highest kcat/Km values for hydrolysis by SFP and LE, however, the tetrapeptide Suc-Ala-Tyr-Leu-Val-pNA [kcat/Km values (M-1S-1) for hydrolysis by SFP and LE : 84000 and 48000, respectively] was the preferred chromogenic substrate for SFP and LE because of its high solubility in the buffer and its moderate kcat/Km values. The substrate specificity of SFP was found to be similar to that of LE.

  通过常规方法合成了多种肽苯胺，目的是获得人类脾纤维蛋白溶解酶（SFP）和人类白细胞弹性蛋白酶（LE）的特定底物，以便比较SFP和LE的底物特异性。研究发现，琥珀酰三肽对硝基苯胺（Suc-Tyr-Leu-X-pNA）中的P1 Val化合物在SFP和LE的水解反应中表现出最高的kcat/Km值，然而，四肽Suc-Ala-Tyr-Leu-Val-pNA（SFP和LE的水解反应的kcat/Km值（M-1S-1）：分别为84000和48000）是SFP和LE的首选显色底物，因为它具有在缓冲液中的高溶解性和适中的kcat/Km值。发现SFP的底物特异性与LE的相似。