L-valine benzylamide | 120369-25-7

• 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: L-valine benzylamide
• 英文别名: (S)-2-amino-N-benzyl-3-methylbutanamide；2-amino-N-benzyl-3-methyl-butyramide；(2S)-2-Amino-N-benzyl-3-methylbutanamide
• CAS: 120369-25-7
• 化学式: C₁₂H₁₈N₂O
• mdl: MFCD09724562
• 分子量: 206.288
• InChiKey: APGFMIYGVANCND-NSHDSACASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  15
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.416
• 拓扑面积：
  55.1
• 氢给体数：
  2
• 氢受体数：
  2

安全信息

• 海关编码：
  2924299090

SDS

(2S)-2-amino-N-benzyl-3-methylbutanamideMSDS英文版

反应信息

• 作为反应物：
  描述：

  L-valine benzylamide 在 1-羟基苯并三唑 、 N,N'-二环己基碳二亚胺 、 三氟乙酸 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 26.0h， 生成 (2R,3S,4S)-N-(4-amino-2-(benzylamino)-3-hydroxy-5-phenylpentanoyl)valine benzamide
  参考文献：
  名称：

  Inhibitors of HIV-1 Proteinase Containing 2-Heterosubstituted 4-Amino-3-hydroxy-5-phenylpentanoic Acid: Synthesis, Enzyme Inhibition, and Antiviral Activity

  摘要：

  A convenient procedure for the synthesis of 2-heterosubstituted statine derivatives as novel building blocks in HN-protease inhibitors has been developed. The synthesis starts with protected L-phenylalaninols, which were converted to gamma-amino alpha,beta-unsaturated esters in a one-pot procedure. A highly diastereoseletive epoxidation of the N-protected (E)-enoates, followed by regioselective ring opening of the corresponding 2,3-epoxy esters with a variety of heteronucleophiles, resulted in 2-heterosubstituted statine derivatives. The overall stereochemical outcome of the transformations meets the required configuration of HIV-protease inhibitors. The short, synthetically flexible, and highly diastereoselective synthesis of 2-heterosubstituted statines has enabled a broad derivation, covering the S3, S2, and S1'-S3' sites of the enzyme. In a series of 46 derivatives, several potent inhibitors were obtained with K-i values as low as 3.4 nM and antiviral activity in the lower nanomolar-range. The structural parameters of the compounds which determine the potency of inhibition and selectivity for the viral enzyme are discussed.

  DOI：

  10.1021/jm00045a013
• 作为产物：
  描述：

  CBZ-L-缬氨酸 在 氢溴酸 、 N,N'-二环己基碳二亚胺 作用下， 以 四氢呋喃 、 溶剂黄146 为溶剂， 反应 11.0h， 生成 L-valine benzylamide
  参考文献：
  名称：

  烷基锌试剂与具有α-氨基酰胺配体的镍配合物催化的醛类对映选择性加成的机理意义†

  摘要：

  通过密度泛函理论（DFT）和ONIOM（B3LYP：UFF）计算研究了由α-氨基酰胺衍生的镍（II）配合物催化的醛的对映选择性烷基化。为了研究对映选择性的起源，提出了一种机制。烷基化的手性确定步骤是中间体配合物的形成，其中涉及5/4 / 4-稠合的三环过渡态。理论上预测的主要产物为（S）-构型，与实验观察结果非常吻合。检查了反应范围，观察到对映选择性添加Et 2 Zn和Me 2的高产率和对映选择性锌为芳香族和脂肪族醛。

  DOI：

  10.1039/c6ob01878e

文献信息

• The dimethylsulfoxonium methylide as unique reagent for the simultaneous deprotection of amino and carboxyl function of N-Fmoc-α-amino acid and N-Fmoc-peptide esters
  作者：Mariagiovanna Spinella、Rosaria De Marco、Emilia L. Belsito、Antonella Leggio、Angelo Liguori

  DOI：10.1016/j.tet.2012.12.052

  日期：2013.2

  The dimethylsulfoxonium methylide is described as a unique and useful reagent for the simultaneous deprotection of amino and carboxyl function of N-Fmoc-α-amino acid and N-Fmoc-peptide esters. The new methodology was applied successfully both to solution- and solid-phase peptide synthesis. The adopted methodology was extended successfully also to peptides containing amino acids bearing acid-sensitive

  二甲基亚砜基亚甲基被描述为用于同时脱去N -Fmoc-α-氨基酸和N -Fmoc-肽酯的氨基和羧基官能团的独特且有用的试剂。新方法已成功应用于溶液和固相肽合成。所采用的方法也成功地扩展到含有在侧链上带有酸敏感保护基的氨基酸的肽。此外，在N-Fmoc-二肽甲基酯与二甲基亚砜基甲基的脱保护反应中未观察到可测量的差向异构。
• Design, synthesis, and evaluation of cystargolide-based β-lactones as potent proteasome inhibitors
  作者：Doleshwar Niroula、Liam P. Hallada、Camille Le Chapelain、Susantha K. Ganegamage、Devon Dotson、Snezna Rogelj、Michael Groll、Rodolfo Tello-Aburto

  DOI：10.1016/j.ejmech.2018.08.052

  日期：2018.9

  infiltration assays revealed that minor structural modifications have significant effects on the ability of our PIs to inhibit intracellular proteasomes, and we identified 5k as a promising candidate for continued therapeutic studies. Our novel drug lead 5k is a more potent proteasome inhibitor than carfilzomib with mid-to-low nanomolar IC50 measurements and it is cytotoxic against multiple cancer cell lines

  肽β-内酯蛋白酶体抑制剂（PIs）胱氨酸A和B被用于进行结构活性关系（SAR）研究，以评估其抗癌潜力。总共设计，合成并评估了24种不同的类似物的蛋白酶体抑制作用，对几种癌细胞系的细胞毒性以及它们进入完整细胞的能力。X射线晶体学分析和亚基选择性用于确定与β-内酯（P 1），肽核，（P x和P y）和端帽（P z）的结构修饰相关的特定亚基结合我们的脚手架。cygogolide衍生物5k，在P y和P处结构唯一图1显示出对人蛋白酶体的β5亚基最有希望的抑制活性（IC 50  ＝ 3.1nM），并且对MCF-7（IC 50  ＝ 416nM），MDA-MB-231（IC 50  ＝ 74nM）和对MCF-7具有显着的细胞毒性。RPMI 8226（IC 50  = 41 nM）癌细胞系。细胞浸润试验表明，微小的结构修饰对我们的PI抑制细胞内蛋白酶体的能力有重大影响，我们确定5k是继续治疗研究的有希望
• Design of an Organocatalyst for the Enantioselective Diels−Alder Reaction with α-Acyloxyacroleins
  作者：Kazuaki Ishihara、Kazuhiko Nakano

  DOI：10.1021/ja053368a

  日期：2005.8.1

  derived from H-l-Phe-l-Leu-N(CH2CH2)2. The enantioselective Diels-Alder reaction of 5-(benzyloxymethyl)cyclopentadiene, cyclopentadiene, cyclohexadiene, 2,3-dimethylbutadiene, and isoprene with alpha-(p-methoxybenzoyloxy)acrolein catalyzed by the above chiral ammonium salt (2.5-20 mol %) at -20-22 degrees C gave the corresponding adducts with 83, 83, 91, 92, and 88% ee, respectively.

  我们已经实现了第一个对映选择性有机催化 Diels-Alder 反应，α 取代的丙烯醛，例如 α-酰氧基丙烯醛，不仅是环状二烯，还包括无环二烯。α-酰氧基丙烯醛可用作α-卤代丙烯醛的合成等价物。本催化剂可由五氟苯磺酸(2.5-3.0当量)和衍生自Hl-Phe-1-Leu-N(CH2CH2)2的手性三胺(1当量)原位制备。5-(苄氧基甲基)环戊二烯、环戊二烯、环己二烯、2,3-二甲基丁二烯和异戊二烯与α-(对甲氧基苯甲酰氧基)丙烯醛在上述手性铵盐(2.5-20 mol %)催化下的对映选择性Diels-Alder反应-20-22 摄氏度产生相应的加合物，分别为 83、83、91、92 和 88% ee。
• l-tert-Leucine-Derived AmidPhos–Silver(I) Chiral Complexes for the Asymmetric [3+2] Cycloaddition of Azomethine Ylides
  作者：Haifei Wang、Zhipeng Zhou、Xiaojun Zheng、Jialin Liu、Jinlei Li、Pushan Wen

  DOI：10.1055/s-0036-1588137

  日期：——

  The l -tert-leucine-derived AmidPhos/silver(I) catalytic system has been developed for the asymmetric [3+2] cycloaddition of azomethine ylides with electronic-deficient alkenes with or without Et3N. Under optimal conditions, highly functionalized endo-4-pyrrolidines were obtained with modest to high yields (up to 99% yield) and enantioselectivities (up to 98% ee).

  L-叔亮氨酸衍生的 AmidPhos/silver(I) 催化体系已开发用于在有或没有 Et3N 的情况下，偶氮甲碱叶立德与缺电子烯烃的不对称 [3+2] 环加成反应。在最佳条件下，以中等至高产率（高达 99% 的产率）和对映选择性（高达 98% ee）获得高度官能化的内 4-吡咯烷。
• Inhibitors of Tripeptidyl Peptidase II. 2. Generation of the First Novel Lead Inhibitor of Cholecystokinin-8-Inactivating Peptidase:  A Strategy for the Design of Peptidase Inhibitors
  作者：C. Robin Ganellin、Paul B. Bishop、Ramesh B. Bambal、Suzanne M. T. Chan、James K. Law、Benoit Marabout、Pratibha Mehta Luthra、Andrew N. J. Moore、Olivier Peschard、Pierre Bourgeat、Christiane Rose、Froylan Vargas、Jean-Charles Schwartz

  DOI：10.1021/jm990226g

  日期：2000.2.1

  fluorimetric assay based on the hydrolysis of the artificial substrate Ala-Ala-Phe-amidomethylcoumarin. A series of di- and tripeptides having various alkyl or aryl side chains was studied to determine the accessible volume for binding and to probe the potential for hydrophobic interactions. From this initial study the tripeptides Ile-Pro-Ile-OH (K(i) = 1 microM) and Ala-Pro-Ala-OH (K(i) = 3 microM) and dipeptide

  失活胆囊收缩素8（CCK-8）的肽酶是一种丝氨酸肽酶，已证明是三肽基肽酶II的膜结合同工型（EC 3.4.14.10）。它在Met-Gly键处裂解神经递质CCK-8硫酸盐，得到Asp-Tyr（SO（3）H）-Met-OH + Gly-Trp-Met-Asp-Phe-NH（2）。为了寻找该肽酶的可逆抑制剂，使用基于人工底物Ala-Ala-Phe-酰胺基甲基香豆素水解的荧光分析法来表征酶促结合亚位点。对具有各种烷基或芳基侧链的一系列二肽和三肽进行了研究，以确定可结合的体积并探讨疏水相互作用的可能性。根据这项初步研究，三肽Ile-Pro-Ile-OH（K（i）= 1 microM）和Ala-Pro-Ala-OH（K（i）= 3 microM）和二肽酰胺Val-Nvl-NHBu（K（ i）= 3 microM）作为线索出现。这些结构的比较导致Val-Pro-NHBu（K（i）= 0.57 micr