N,N'-bis[(S)-1-methoxycarbonyl-1-isobutylmethyl]fumaric diamide | 213745-59-6

• 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
• 英文名称: N,N'-bis[(S)-1-methoxycarbonyl-1-isobutylmethyl]fumaric diamide
• 英文别名: Fumaric acid bis(leucine methyl ester) amide；methyl (2S)-2-[[(E)-4-[[(2S)-1-methoxy-4-methyl-1-oxopentan-2-yl]amino]-4-oxobut-2-enoyl]amino]-4-methylpentanoate
• CAS: 213745-59-6
• 化学式: C₁₈H₃₀N₂O₆
• 分子量: 370.446
• InChiKey: JQBVWPCDVVJEGD-SWICKSTGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  26
• 可旋转键数：
  12
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  111
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  chloroamine-T 、 N,N'-bis[(S)-1-methoxycarbonyl-1-isobutylmethyl]fumaric diamide 在 K2 作用下， 以 水 、 叔丁醇 为溶剂， 生成 N,N'-bis[(S)-1-methoxycarbonylisobutylmethyl]-(2R,3R)-3-hydroxy-2-(tosylamino)succinic diamide 、 N,N'-bis[(S)-1-methoxycarbonylisobutylmethyl]-(2S,3S)-3-hydroxy-2-(tosylamino)succinic diamide
  参考文献：
  名称：

  通过包括复分解和氨基羟基化的催化序列合成小三肽分子。

  摘要：

  通过使用两个独立的连续催化程序的组合合成三肽结构。N-丙烯酰基氨基酸酯的交叉复分解产生具有独有的E双键几何结构的富马酰胺化合物。这代表了这种反应中完全双键选择性的前所未有的例子。随后进行手性富马酰胺的不对称氨基羟基化反应，不需要任何其他配体，收率高且无副产物。该反应将中心富马酰胺单元转化为羟基天冬氨酸部分，并依赖于起始富马二酰胺的固有立体化学。我们序列的另一个特征是在氨基羟基化反应中易于产生立体化学多样化。作为结果，快速的构象和构型多样化可以从整个两步催化序列中实现。从两种不同的N-丙烯酰基氨基酯开始证明了这种方法的多功能性，这导致了八个结构和立体化学上不同的三肽的合成，这些三肽都可以单独鉴定。这样，本发明的两步催化方法应用于有效地合成大家族的三肽分子探针。

  DOI：

  10.1002/chem.200501123
• 作为产物：
  描述：

  (2S)-2-丙烯酰氨基-4-甲基戊酸甲酯 在 PhCH=RuCH[(Mes)NCH=CHN(Mes)](PCy₃)Cl₂ 作用下， 以 二氯甲烷 为溶剂， 反应 10.0h， 以79%的产率得到N,N'-bis[(S)-1-methoxycarbonyl-1-isobutylmethyl]fumaric diamide
  参考文献：
  名称：

  通过包括复分解和氨基羟基化的催化序列合成小三肽分子。

  摘要：

  通过使用两个独立的连续催化程序的组合合成三肽结构。N-丙烯酰基氨基酸酯的交叉复分解产生具有独有的E双键几何结构的富马酰胺化合物。这代表了这种反应中完全双键选择性的前所未有的例子。随后进行手性富马酰胺的不对称氨基羟基化反应，不需要任何其他配体，收率高且无副产物。该反应将中心富马酰胺单元转化为羟基天冬氨酸部分，并依赖于起始富马二酰胺的固有立体化学。我们序列的另一个特征是在氨基羟基化反应中易于产生立体化学多样化。作为结果，快速的构象和构型多样化可以从整个两步催化序列中实现。从两种不同的N-丙烯酰基氨基酯开始证明了这种方法的多功能性，这导致了八个结构和立体化学上不同的三肽的合成，这些三肽都可以单独鉴定。这样，本发明的两步催化方法应用于有效地合成大家族的三肽分子探针。

  DOI：

  10.1002/chem.200501123

文献信息

• Solution and Solid-State Models of Peptide CH···O Hydrogen Bonds
  作者：Paul W. Baures、Alicia M. Beatty、Muthu Dhanasekaran、Brian A. Helfrich、Waleska Pérez-Segarra、John Desper

  DOI：10.1021/ja0257366

  日期：2002.9.1

  CDCl(3). X-ray crystal structures identified CH...O=C hydrogen bonds alongside intermolecular NH...O=C hydrogen bonding, a result that supports the solution (1)H NMR spectroscopy results. The solution and solid-state data therefore both provide evidence for the presence of CH...O hydrogen bonds formed concurrent with NH...O hydrogen bonding in these structures. The CH...O=C hydrogen bonds in the X-ray

  富马酰胺衍生物在溶液中通过 (1) H NMR 光谱分析和在固态下通过 X 射线晶体学分析，以表征在每种条件下 CH...O 相互作用的形成，从而作为肽中这些相互作用的模型和蛋白质结构。用 DMSO-d(6) 滴定 10 mM 富马酰胺在 CDCl(3) 中的溶液，导致化学位移向下移动，被认为参与 CH...O=S(CD(3))( 2) 氢键与 NH...O=S(CD(3))(2) 氢键同时存在。在此模型中，相同条件下的非参与 CH 组显示 0.0 和 1.0 M DMSO-d(6) 之间的化学位移没有显着变化，然后在较高的 DMSO-d(6) 浓度下向上移动。在浓度高于 1.0 M DMSO-d(6) 时，定向 CH... O=S(CD(3))(2) 氢键可防止随机 DMSO-d(6) 接触，并防止参与的 CH 基团的化学位移向上场移动，超出在 CDCl(3) 中观察到的原始值。X 射线晶体结构确定了
• Demonstration of <i>e</i><i>ndo</i>-<i>cis</i>-(2<i>S</i>,3<i>R</i>)-Bicyclo[2.2.1]hept-5-en-2,3- dicarbonyl Unit as a Reverse-Turn Scaffold and Nucleator of Two-Stranded Parallel β-Sheets:  Design, Synthesis, Crystal Structure, and Self-Assembling Properties of Norborneno Peptide Analogues
  作者：Darshan Ranganathan、V. Haridas、Sunita Kurur、Achamma Thomas、K. P. Madhusudanan、R. Nagaraj、A. C. Kunwar、A. V. S. Sarma、Isabella L. Karle

  DOI：10.1021/ja980143+

  日期：1998.8.1

  endo-cis-(2S,3R)-Bicyclo[2.2.1]hept-5-en (norbornene) dicarbonyl unit with a built-in U-architecture has been demonstrated to be an excellent reverse-turn molecular scaffold. A large variety of endo-cis-(2S,3R)-norborneno bispeptides containing almost all of the coded amino acids were synthesized and examined for conformational preferences by H-1 NMR, FT-IR, CD, and X-ray crystallographic studies. While FT-IR and H-1 NMR variable-temperature studies ruled out the presence of any significant amount of intramolecular hydrogen bonding in simple bispeptides (3a-h) (except in Aib bispeptide), the CD studies were clearly in favor of a beta-turn type structure. Single-crystal X-ray studies on Aib, Val and Leu containing norborneno bispeptides (3b-d) provided convincing proof for the presence of reverse-turn conformation. While the interstrand C-alpha-C-alpha' distances (5.2-5.7 Angstrom) were well within the range of those for beta-turn structures, no interstrand intramolecular hydrogen bonding was seen in Val and Leu bispeptides; the Aib bispeptide forms a seven-membered hydrogen-bonded ring, thus, showing that the norbornene (2S,3R)-dicarbonyl template assembles peptide chains in reverse-turn conformation by virtue of its built-in U-shaped architecture at these positions, and hydrogen bonding may not be necessary to stabilize the turn structure. The endo-cis-(2S,3R) orientation of bispeptide chains is essential for turn structure as shown by the crystal structure of trans-(2R, 3R) and trans-(2S,3S) derivative of Val bispeptide wherein the two peptide chains move away from each other with the C-alpha-C-alpha' distance increasing to 7.1-8.2 Angstrom. The norbornene 5,6-double bond was hydrogenated to 5,6-dihydro derivative which showed almost the same CD spectrum as its olefinic analogue. Oxidative cleavage [Ru (VIII)] of the 5,6-double bond in norborneno bispeptides, as demonstrated with Leu bispeptide, afforded novel cyclopentanoid peptide analogues. The promise of norbornene unit as a template for nucleating the formation of two-stranded parallel beta-sheets with minimum structural complexity is shown by the preparation of higher members of norborneno bispeptides with the general structure NBE(Pep)(2) [NBE = endo-cis-(2S,3R)-bicyclo[2.2.1]hept-5-en (norbornene) dicarbonyl unit; Pep = peptide strand with two, three, or four (same or different) amino acid residues]. In H-1 NMR, the high (3)J(HN alpha) values (7.0-9.3 Hz) observed for the amide protons (Table 5) coupled with the presence of medium to strong intrastrand sequential ROE connectivities d(alpha N(i,i+1)) spanning the entire three- or four-residue sequence in the peptide strands of 9a-e and 10 and the exhibition of relatively low-temperature coefficients (d delta/dT = -0.2 to -3.4 ppb/K) for amide protons in DMSO-d(6) solvent (Table 4) clearly suggested that hydrogen-bonded beta-sheet conformers dominate the population. FT-IR and CD studies provided further support for parallel beta-sheet structures. A particularly unique feature of the norborneno bispeptides is their strong tendency to self-assemble in the solid state.Thus, while endo-cis-(2S,3R)-Aib bispeptide (3b) forms 16-membered hydrogen bonded centrosymmetric dimers, the half-ester half-acid and the dicarboxylic acid derivatives of 3b self-assemble to form highly ordered hydrogen-bonded molecular ribbons. The Val and Leu cis-(2S, 3R)-bispeptides organize into hydrogen-bonded chains and the trans isomer of Val bispeptide self-assembles into hydrogen-bonded beta-sheet ribbon.
• Synthesis of Small Tripeptide Molecules through a Catalysis Sequence Comprising Metathesis and Aminohydroxylation
  作者：Jan Streuff、Martin Nieger、Kilian Muñiz

  DOI：10.1002/chem.200501123

  日期：2006.5.24

  stereochemistry of the starting fumaric diamides. An additional feature of our sequence is the ease of generating stereochemical diversification within the aminohydroxylation reaction. As a consequence, rapid conformational and configurational diversification can be achieved from the overall two-step catalytic sequence. The versatility of this approach is demonstrated by starting from two different

  通过使用两个独立的连续催化程序的组合合成三肽结构。N-丙烯酰基氨基酸酯的交叉复分解产生具有独有的E双键几何结构的富马酰胺化合物。这代表了这种反应中完全双键选择性的前所未有的例子。随后进行手性富马酰胺的不对称氨基羟基化反应，不需要任何其他配体，收率高且无副产物。该反应将中心富马酰胺单元转化为羟基天冬氨酸部分，并依赖于起始富马二酰胺的固有立体化学。我们序列的另一个特征是在氨基羟基化反应中易于产生立体化学多样化。作为结果，快速的构象和构型多样化可以从整个两步催化序列中实现。从两种不同的N-丙烯酰基氨基酯开始证明了这种方法的多功能性，这导致了八个结构和立体化学上不同的三肽的合成，这些三肽都可以单独鉴定。这样，本发明的两步催化方法应用于有效地合成大家族的三肽分子探针。