ethyl 4-[(t-butyloxycarbonyl)amino]-2-methyl-2-butanoate | 356789-18-9

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: ethyl 4-[(t-butyloxycarbonyl)amino]-2-methyl-2-butanoate
• 英文别名: ethyl (trans)-4-[(t-butoxycarbonyl)amino]-2-methyl-2-butenoate；(E)-4-tert-butoxycarbonylamino-2-methylbut-2-enoic acid ethyl ester；ethyl (E)-2-methyl-4-[(2-methylpropan-2-yl)oxycarbonylamino]but-2-enoate
• CAS: 356789-18-9
• 化学式: C₁₂H₂₁NO₄
• 分子量: 243.303
• InChiKey: XEGCGPIATDRIEQ-VQHVLOKHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  17
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  64.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  ethyl 4-[(t-butyloxycarbonyl)amino]-2-methyl-2-butanoate 生成 ethyl (2R)-2-iodo-2-(2-oxo-1,3-oxazolidin-5-yl)propanoate
  参考文献：
  名称：

  Guindon Y., Slassi A., Rancourt J., Bantle G., Bencheqroun M., Murtagh L.+, J. Org. Chem, 60 (1995) N 2, S 288-289

  摘要：

  DOI：
• 作为产物：
  描述：

  N-(叔丁氧基羰基)甘氨酸-N′-甲氧基-N′-甲酰胺 在 lithium aluminium tetrahydride 、 正丁基锂 作用下， 以 四氢呋喃 、 乙醚 、 正己烷 为溶剂， 反应 3.66h， 生成 ethyl 4-[(t-butyloxycarbonyl)amino]-2-methyl-2-butanoate
  参考文献：
  名称：

  乙烯基肽的立体选择性合成

  摘要：

  通过α-氨基醛的霍纳立体选择性烯化，将反式或顺式乙烯基插入α-氨基酸的α-碳和羧基之间。因此已经获得了许多纯的顺式和反式乙烯基α-氨基酸，并通过经典方法与氨基配偶体偶联。该方法的多功能性通过制备[反式乙烯基-Gly 3 ]亮脑啡肽来说明。

  DOI：

  10.1016/s0040-4020(01)00433-1

文献信息

• Stereoselective synthesis of vinylogous peptides
  作者：Claude Grison、Stéphane Genève、Etienne Halbin、Philippe Coutrot

  DOI：10.1016/s0040-4020(01)00433-1

  日期：2001.6

  A trans or cis ethenyl group has been inserted between the α-carbon and the carboxyl group of α-aminoacids by Horner stereoselective olefination of α-aminoaldehydes. Numerous pure cis and trans vinylogous α-aminoacids have been obtained thus and coupled with aminopartners by classical methods. The versatility of the method was illustrated by the preparation of a [trans vinylogous-Gly3]Leu-enkephalin

  通过α-氨基醛的霍纳立体选择性烯化，将反式或顺式乙烯基插入α-氨基酸的α-碳和羧基之间。因此已经获得了许多纯的顺式和反式乙烯基α-氨基酸，并通过经典方法与氨基配偶体偶联。该方法的多功能性通过制备[反式乙烯基-Gly 3 ]亮脑啡肽来说明。
• Total Synthesis of the Alkaloids Martinelline and Martinellic Acid via a Hetero Diels−Alder Multicomponent Coupling Reaction
  作者：David A. Powell、Robert A. Batey

  DOI：10.1021/ol026293d

  日期：2002.8.1

  [reaction: see text] A concise synthesis of the guanidine alkaloids, (+/-)-martinelline and (+/-)-martinellic acid, using a protic acid catalyzed 2:1 hetero Diels-Alder coupling reaction between N-Cbz 2-pyrroline and methyl 4-aminobenzoate, is described. Protic acid catalysis, rather than Lewis acid catalysis, was necessary to achieve the desired sense of diastereocontrol in the coupling reaction.

  [反应：参见正文]使用质子酸催化N-Cbz 2之间的2：1杂Diels-Alder偶联反应，精确合成了胍生物碱，（+/-）-马丁啉和（+/-）-马丁醇酸描述了吡咯啉和4-氨基苯甲酸甲酯。质子酸催化而不是路易斯酸催化对于在偶联反应中实现所需的非对映体控制意义是必需的。
• Substituted Aminobutyric Derivatives as Neprilysin Inhibitors
  申请人：Coppola Gary Mark

  公开号：US20100305145A1

  公开（公告）日：2010-12-02

  The present invention provides a compound of formula I′; or a pharmaceutically acceptable salt thereof, wherein R 1 , R 2 , R 3 , X and n are defined herein. The invention also relates to a method for manufacturing the compounds of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition.

  本发明提供了一个式子I'的化合物；或其药学上可接受的盐，其中R1、R2、R3、X和n在此定义。本发明还涉及制造所述化合物的方法及其治疗用途。本发明进一步提供了药理活性剂的组合物和制药组合物。
• Peroxide-Shunt Substrate-Specificity for the Salmonella typhimurium O₂-Dependent tRNA Modifying Monooxygenase (MiaE)
  作者：Andra L. Corder、Bishnu P. Subedi、Siai Zhang、Amanda M. Dark、Frank W. Foss、Brad S. Pierce

  DOI：10.1021/bi4000832

  日期：2013.9.10

  Post-transcriptional modifications of tRNA are made to structurally diversify tRNA. These modifications alter noncovalent interactions within the ribosomal machinery, resulting in phenotypic changes related to cell metabolism, growth, and virulence. MiaE is a carboxylate bridged, nonheme diiron monooxygenase, which catalyzes the O-2-dependent hydroxylation of a hypermodified-tRNA nucleoside at position 37 (2-methylthio-N-6-isopentenyl-adenosine(37)-tRNA) [designated ms(2)i(6)A(37)]. In this work, recombinant MiaE was cloned from Salmonella typhimurium, purified to homogeneity, and characterized by UV-visible and dual-mode X-band EPR spectroscopy for comparison to other nonheme diiron enzymes. Additionally, three nucleoside substrate-surrogates (i(6)A, Cl(2)i(6)A, and ms(2)i(6)A) and their corresponding hydroxylated products (io(6)A, Cl(2)io(6)A, and ms(2)io(6)A) were synthesized to investigate the chemo- and stereospecificity of this enzyme. In the absence of the native electron transport chain, the peroxide-shunt was utilized to monitor the rate of substrate hydroxylation. Remarkably, regardless of the substrate (i(6)A, Cl(2)i(6)A, and ms(2)i(6)A) used in peroxide-shunt assays, hydroxylation of the terminal isopentenyl-C4-position was observed with >97% E-stereoselectivity. No other nonspecific hydroxylation products were observed in enzymatic assays. Steady-state kinetic experiments also demonstrate that the initial rate of MiaE hydroxylation is highly influenced by the substituent at the C2-position of the nucleoside base (v(0)/[E] for ms(2)i(6)A > i(6)A > Cl(2)i(6)A). Indeed, the >3-fold rate enhancement exhibited by MiaE for the hydroxylation of the free ms(2)i(6)A nucleoside relative to i(6)A is consistent with previous whole cell assays reporting the ms(2)io(6)A and io(6)A product distribution within native tRNA-substrates. This observation suggests that the nucleoside C2-substituent is a key point of interaction regulating MiaE substrate specificity:
• Guindon Y., Slassi A., Rancourt J., Bantle G., Bencheqroun M., Murtagh L.+, J. Org. Chem, 60 (1995) N 2, S 288-289
  作者：Guindon Y., Slassi A., Rancourt J., Bantle G., Bencheqroun M., Murtagh L.+

  DOI：——

  日期：——