N-Fmoc-L-Val-N(OCH3)CH3 | 227624-28-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 芴
• 英文名称: N-Fmoc-L-Val-N(OCH3)CH3
• 英文别名: Fmoc-Val-N(CH3)-OCH3
• CAS: 227624-28-4
• 化学式: C₂₂H₂₆N₂O₄
• 分子量: 382.459
• InChiKey: SPEJWDXPIHDUNF-FQEVSTJZSA-N

物化性质

• 熔点：
  109 °C
• 密度：
  1.175±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.57
• 重原子数：
  28.0
• 可旋转键数：
  6.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  67.87
• 氢给体数：
  1.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  N-Fmoc-L-Val-N(OCH3)CH3 在 lithium aluminium tetrahydride 作用下， 以 四氢呋喃 为溶剂， 反应 1.0h， 生成 Fmoc-Val-aldehyde
  参考文献：
  名称：

  肽α-酮酰胺衍生物作为蛋白酶体抑制剂的合成及生物活性。

  摘要：

  蛋白酶体活性影响细胞周期进程以及免疫应答，并且它被广泛认为是针对几种疾病的潜在疗法的有吸引力的药理学靶标。在本文中，我们提出了在C末端位置带有不同α-酮酰胺部分的一系列假二/三肽的合成，作为药效学单元，用于与维持蛋白酶体蛋白水解作用的苏氨酸残基相互作用。其中，我们确定了1-萘基衍生物13c是20S蛋白酶体β5亚基的有效和选择性抑制剂，在体外表现出纳摩尔效价（β5IC 50 = 7 nM，β1IC 50 = 60μM，β2IC 50> 100μM）。此外，它显着抑制人结肠直肠癌细胞系HCT116的增殖并诱导其凋亡。

  DOI：

  10.1021/acsmedchemlett.9b00233
• 作为产物：
  描述：

  Fmoc-L-缬氨酸 、 N-甲基-N-甲氧基胺盐酸盐 在 1-羟基苯并三唑 、 N,N'-二环己基碳二亚胺 、 N,N-二异丙基乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 3.5h， 生成 N-Fmoc-L-Val-N(OCH3)CH3
  参考文献：
  名称：

  固相合成肽乙烯基砜作为半胱氨酸蛋白酶的潜在抑制剂和基于活性的探针。

  摘要：

  由2-氯三苯甲基树脂结合的酚氨基乙烯基乙烯基砜以高收率和纯度制备了肽乙烯基砜。该方法能够方便地合成在P（1）位置具有不同氨基酸的肽乙烯基砜。它还可以有效合成蛋白质组学实验中使用的含乙烯基砜，基于活性的半胱氨酸蛋白酶探针。

  DOI：

  10.1021/ol0275567

文献信息

• A Convenient One-Pot Method for the Synthesis of N-Methoxy-N-methyl Amides from Carboxylic Acids
  作者：Joong-Gon Kim、Doo-Ok Jang

  DOI：10.5012/bkcs.2010.31.01.171

  日期：2010.1.20

  reaction temperatures, low yields, multi-step reactions, or tedious work-up procedures.We report a mild and convenient one-pot method for the synthesis of Weinreb amides from carboxylic acids employing trichloroacetonitrile (TCA) and triphenylphosphine (TPP). We first presumed that carboxylic acid chlorides formed

  然而，这些方法中的许多都有缺点，包括使用有毒或昂贵的试剂、反应时间长、反应温度高、产率低、多步反应或繁琐的后处理程序。我们报告了一种温和且方便的方法使用三氯乙腈 (TCA) 和三苯基膦 (TPP) 从羧酸合成 Weinreb 酰胺的一锅法。我们首先假设形成了羧酸氯化物
• Nonionic Side Chains Modulate the Affinity and Specificity of Binding between Functionalized Polyamines and Structured RNA
  作者：Graham R. Lawton、Daniel H. Appella

  DOI：10.1021/ja046436m

  日期：2004.10.1

  This Communication introduces side-chain-bearing polyamines as molecules for selective recognition of folded RNA structures. The complex folded structures associated with RNA create binding pockets for proteins, and also binding sites for small molecules. Developing organic molecules that can bind RNA with high affinity and specificity is a challenge that must be overcome for RNA to be considered a viable drug target. In this work, six polyamines with different side chains were synthesized to test for effects on binding affinity and specificity to TAR RNA and RRE RNA of HIV. Binding interactions between polyamines and RNAs were examined using two footprinting assays, based on terbium-induced cleavage and magnesium-catalyzed cleavage at higher pH. The binding constants and the binding specificity were highly dependent on the side chains of the polyamines, demonstrating that this class of molecules is a very promising starting point for development of highly selective RNA-binding ligands.
• Synthesis of 9-fluorenylmethoxycarbonyl-protected amino aldehydes
  作者：James J Wen、Craig M Crews

  DOI：10.1016/s0957-4166(98)00183-9

  日期：1998.6

  9-Fluorenylmethoxycarbonyl-protected amino aldehydes could be efficiently prepared in good yields by using two methods: (i) NaBH4 reduction of Fmoc-protected mixed anhydrides, followed by the Swern oxidation of the alcohols; and (ii) LiAlH4 reduction of Fmoc-protected amino acid Weinreb amides. Both methods afforded comparable overall synthetic yields (70-80%). (C) 1998 Elsevier Science Ltd. All rights reserved.
• Discovery of a Novel Class of Potent HCV NS4B Inhibitors: SAR Studies on Piperazinone Derivatives
  作者：Ramesh Kakarla、Jian Liu、Devan Naduthambi、Wonsuk Chang、Ralph T. Mosley、Donghui Bao、Holly M. Micolochick Steuer、Meg Keilman、Shalini Bansal、Angela M. Lam、William Seibel、Sandra Neilson、Phillip A. Furman、Michael J. Sofia

  DOI：10.1021/jm4012643

  日期：2014.3.13

  HTS screening identified compound 2a (piper-azinone derivative) as a low micromolar HCV genotype 1 (GT-1) inhibitor. Resistance mapping studies suggested that this piperazinone chemotype targets the HCV nonstructural protein NS4B. Extensive SAR studies were performed around 2a and the amide function and the C-3/C-6 cis stereochemistry of the piperazinone core were essential for HCV activity. A 10-fold increase in GT-1 potency was observed when the chiral phenylcyclopropyl amide side chain of 2a was replaced with p-fluorophenylisoxazole-carbonyl moiety (67). Replacing the C-6 nonpolar hydrophobic moiety of 67 with a phenyl moiety (95) did not diminish the GT-1 potency. A heterocyclic thiophene moiety (103) and an isoxazole moiety (108) were incorporated as isosteric replacements for the C-6 phenyl moiety (95), resulting in significant improvement in GT-1b and la potency. However, the piperazonone class of compounds lacks GT-2 activity and, consequently, were not pursued further into development.