L-谷氨酰胺叔丁酯 | 41444-88-6

• 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
• 中文名称: L-谷氨酰胺叔丁酯
• 英文名称: L-glutamine tert-butyl ester
• 英文别名: glutamine tert-butyl ester；L-glutamine t-butyl ester；Glutamine T-butyl ester；tert-butyl (2S)-2,5-diamino-5-oxopentanoate
• CAS: 41444-88-6
• 化学式: C₉H₁₈N₂O₃
• 分子量: 202.254
• InChiKey: VVOPSEUXHSUTJS-LURJTMIESA-N

物化性质

• 沸点：
  359.5±32.0 °C(Predicted)
• 密度：
  1.090±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.6
• 重原子数：
  14
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  95.4
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  L-谷氨酰胺叔丁酯 在 palladium on activated charcoal N-甲基吗啉 、 diethyl cyanophosphoridate 、 氢气 、 三乙胺 、 氯甲酸异丁酯 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， -20.0~25.0 ℃ 、101.33 kPa 条件下， 反应 7.33h， 生成
  参考文献：
  名称：

  The Synthesis and Thymidylate Synthase Inhibitory Activity of L-.gamma.-L-Linked Dipeptide and L-.gamma.-Amide Analogs of 2-Desamino-2-methyl-N10-propargyl-5,8-dideazafolic acid (ICI 198583)

  摘要：

  Sixteen gamma-linked dipeptide and four L-Glu-gamma-amide analogues of 2-desamino-2-methyl-N-10-propargyl-5,8-dideazafolic acid (ICI 198583) have been synthesized and evaluated as inhibitors of thymidylate synthase (TS). Z-blocked L-Glu-gamma-L-linked dipeptides and L-Glu-gamma-amides were prepared by condensing alpha-tert-butyl-N-(benzyloxycarbonyl)-L-glutamic acid with the appropriate tert-butyl-protected L-amino acid or amine. The Z group was removed by catalytic hydrogenolysis, and the resulting dipeptides or L-Glu-gamma-amides were condensed with the appropriate pteroic acid analogue trifluoroacetate salt using diethyl cyanophosphoridate as coupling reagent. Deprotection with trifluoroacetic acid in the final step gave the desired quinazoline gamma-linked dipeptides and L-Glu-gamma-amides as their trifluoroacetate salts. Nearly all the dipeptide analogues were potent inhibitors of TS, the best being ICI 198583-gamma-L-2-aminoadipate (IC50 = 2 nM). Several of these dipeptides were found to be susceptible to enzymatic hydrolysis in mice. The quinazoline monocarboxylate L-Glu-gamma-amides, lacking an alpha'-carboxyl group, are less active against TS and L1210 cell growth but are also not susceptible to enzymatic hydrolysis in mice.

  DOI：

  10.1021/jm00046a014
• 作为产物：
  描述：

  N-苄氧羰基-L-谷氨酰胺 在 palladium on activated charcoal 硫酸 、 氢气 作用下， 以 乙醇 、 二氯甲烷 为溶剂， 生成 L-谷氨酰胺叔丁酯
  参考文献：
  名称：

  t-Butyl Esters of Amino Acids and Peptides and their Use in Peptide Synthesis¹

  摘要：

  DOI：

  10.1021/ja01498a032

文献信息

• Allenone-Mediated Racemization/Epimerization-Free Peptide Bond Formation and Its Application in Peptide Synthesis
  作者：Zhengning Wang、Xuewei Wang、Penghui Wang、Junfeng Zhao

  DOI：10.1021/jacs.1c04614

  日期：2021.7.14

  peptide synthesis (SPPS). The robustness of the allenone-mediated peptide bond formation was showcased incisively by the synthesis of carfilzomib, which involved a rare racemization-/epimerization-free N to C peptide elongation strategy. Furthermore, the successful synthesis of the model difficult peptide ACP (65–74) on a solid support suggested that this method was compatible with SPPS. This method combines

  Allenone 首次被鉴定为一种高效的肽偶联剂。肽键以α-羰基乙烯基酯为关键中间体形成，其形成和随后的氨解以无外消旋/差向异构化的方式自发进行。丙二烯酮偶联试剂不仅对简单酰胺和二肽的合成有效，而且还适用于肽片段缩合和固相肽合成 (SPPS)。卡非佐米的合成充分展示了丙二烯酮介导的肽键形成的稳健性，该合成涉及一种罕见的无消旋化/差向异构化的 N 到 C 肽延伸策略。此外，在固体支持物上成功合成模型困难肽 ACP (65-74) 表明该方法与 SPPS 兼容。该方法结合了传统活性酯和偶联剂的优点，同时克服了两种策略的缺点。因此，这种丙二烯酮介导的肽键形成策略代表了肽合成的颠覆性创新。
• Facile and Mild Synthesis of Linear and Cyclic Peptides via Thioesters
  作者：Paola Agrigento、Fernando Albericio、Sylvie Chamoin、Isabelle Dacquignies、Halil Koc、Martin Eberle

  DOI：10.1021/ol501669n

  日期：2014.8.1

  Thioester-mediated peptide bond formation has recently garnered a lot of attention, most notably in its relevance to condensation of large peptide fragments. Herein, a simple and general ligation method for the preparation of linear and cyclic peptides, starting from peptide thioester, mainly p-chlorophenyl, precursors is reported. The inherent advantages of this method are the low epimerization, reduced

  硫酯介导的肽键形成近来引起了很多关注，尤其是与大肽片段缩合有关。在本文中，报道了一种简单且通用的制备线性和环状肽的方法，该方法从肽硫酯，主要是对氯苯基前体开始。该方法的固有优点是低差向异构化，减少的二聚化，使用温和的反应条件以及消除了多余的偶联剂。
• [EN] STAT DEGRADERS AND USES THEREOF<br/>[FR] AGENTS DE DÉGRADATION DE STAT ET LEURS UTILISATIONS
  申请人：KYMERA THERAPEUTICS INC

  公开号：WO2021188696A1

  公开（公告）日：2021-09-23

  The present invention provides compounds, compositions thereof, and methods of using the same.

  本发明提供了化合物、其组合物以及使用相同的方法。
• Isoindole-imide compounds and compositions comprising and methods of using the same
  申请人：Muller W. George

  公开号：US20070049618A1

  公开（公告）日：2007-03-01

  This invention relates to isoindole-imide compounds, and pharmaceutically acceptable salts, solvates, stereoisomers, and prodrugs thereof. Methods of use, and pharmaceutical compositions of these compounds are disclosed.

  这项发明涉及异吲哚-亚胺化合物，以及它们的药物可接受的盐、溶剂化物、对映异构体和前药。这些化合物的使用方法和药物组合物已经公开。
• Processes for the preparation of 4-amino-2-(2,6-dioxopiperidin-3-yl)isoindoline-1,3-dione compounds
  申请人：Ge Chuanshen

  公开号：US20070004920A1

  公开（公告）日：2007-01-04

  The present invention provides new processes for the preparation of unsubstituted and substituted 4-amino-2-(2,6-dioxopiperidin-3-yl)isoindoline-1,3-dione compounds which are usefuil, for example, for preventing or treating diseases or conditions related to an abnormally high level or activity of TNF-α. The invention can provide improved and/or efficient processes for the commercial production of unsubstituted and substituted 4-amino-2-(2,6-dioxopiperidin-3-yl)isoindoline-1,3-dione compounds, including, but not limited to, unsubstituted 4-amino-2-(2,6-dioxopiperidin-3-yl)isoindoline-1,3-dione.

  本发明提供了新的制备未取代和取代的4-氨基-2-(2,6-二氧杂哌啶-3-基)异吲哚啉-1,3-二酮化合物的方法，这些化合物例如可用于预防或治疗与TNF-α水平或活性异常升高相关的疾病或状况。本发明能够提供改进和/或有效的商业生产未取代和取代的4-氨基-2-(2,6-二氧杂哌啶-3-基)异吲哚啉-1,3-二酮化合物的方法，包括但不限于未取代的4-氨基-2-(2,6-二氧杂哌啶-3-基)异吲哚啉-1,3-二酮。