L-isoleucyl-L-phenylalanine methyl amide | 871917-47-4

• 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-isoleucyl-L-phenylalanine methyl amide
• 英文别名: (2S,3S)-2-amino-3-methyl-N-[(2S)-1-(methylamino)-1-oxo-3-phenylpropan-2-yl]pentanamide
• CAS: 871917-47-4
• 化学式: C₁₆H₂₅N₃O₂
• 分子量: 291.393
• InChiKey: DTBVMVDTQAUYGV-UBHSHLNASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.1
• 重原子数：
  21
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  84.2
• 氢给体数：
  3
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  L-isoleucyl-L-phenylalanine methyl amide 在 劳森试剂 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 生成 (2S,3S)-2-[[2-[hydroxy(methyl)amino]-4-oxo-3-sulfanylidenecyclobuten-1-yl]amino]-3-methyl-N-[(2S)-1-(methylamino)-1-oxo-3-phenylpropan-2-yl]pentanamide
  参考文献：
  名称：

  Squaric Acid-Based Peptidic Inhibitors of Matrix Metalloprotease-1

  摘要：

  A series of squaric acid-peptide conjugates were synthesized and evaluated as inhibitors of MMP-1. The cyclobut-3-enedione core was substituted at the 3-position with several functional groups, such as -N(alkyl)OH, -NHOH, and -OH, that are designed to bind to the zinc atom in the active site of the metalloprotease. The 4-position of the cyclobut-3-enedione was derivatized with mono- or dipeptides that are designed to bind in the S1' and S2' subsites of the enzyme, and position the metal chelating group appropriately in the active site for binding to zinc. Positional scanning revealed that -N(Me)OH provided the highest level of inhibition among the chelating groups that were tested, and Leu-Tle-NHMe was the preferred amino acid sequence. A combination of these groups yielded an inhibitor with an IC50 value of 95 mu M. For one inhibitor, conversion of one of the carbonyl groups on the cyclobut-3-enedione core to a thiocarbonyl group resulted in a 18-fold increase in potency, and yielded a compound with an IC50 value of 15 mu M.

  DOI：

  10.1021/jo0517848
• 作为产物：
  描述：

  N-(t-butoxycarbonyl)-L-phenylalanine methylamide 在 1-羟基苯并三唑 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 、 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 反应 1.84h， 生成 L-isoleucyl-L-phenylalanine methyl amide
  参考文献：
  名称：

  Squaric Acid-Based Peptidic Inhibitors of Matrix Metalloprotease-1

  摘要：

  A series of squaric acid-peptide conjugates were synthesized and evaluated as inhibitors of MMP-1. The cyclobut-3-enedione core was substituted at the 3-position with several functional groups, such as -N(alkyl)OH, -NHOH, and -OH, that are designed to bind to the zinc atom in the active site of the metalloprotease. The 4-position of the cyclobut-3-enedione was derivatized with mono- or dipeptides that are designed to bind in the S1' and S2' subsites of the enzyme, and position the metal chelating group appropriately in the active site for binding to zinc. Positional scanning revealed that -N(Me)OH provided the highest level of inhibition among the chelating groups that were tested, and Leu-Tle-NHMe was the preferred amino acid sequence. A combination of these groups yielded an inhibitor with an IC50 value of 95 mu M. For one inhibitor, conversion of one of the carbonyl groups on the cyclobut-3-enedione core to a thiocarbonyl group resulted in a 18-fold increase in potency, and yielded a compound with an IC50 value of 15 mu M.

  DOI：

  10.1021/jo0517848

文献信息

• New hydroxyethylamine HIV protease inhibitors that suppress viral replication
  作者：Daniel H. Rich、J. V. N. Vara Prasad、Chong Qing Sun、Jeremy Green、Richard Mueller、Kathryn Houseman、Debra MacKenzie、Miroslav Malkovsky

  DOI：10.1021/jm00099a008

  日期：1992.10

  The synthesis of analogues of AcSerLeuAsn[Phe-HEA-Pro]IleValOMe (1, JG-365; where HEA stands for the hydroxyethylamine unit 2), a tight-binding inhibitor of HIVP, are reported. Systematic modification of the P3 and P3' regions of the inhibitors has led to smaller HIVP inhibitors that inhibit viral replication in HIV-infected and SIV-infected cell cultures. Six aliphatic and/or aromatic derivatives were prepared by replacing residues in the P3 regions of BocLeuAsn[Phe-HEA-Pro]IleValOMe. Aromatic side chains at P3 gave better inhibitors than aliphatic side chains. The better inhibitors in this series contained a beta-naphthylalanine or a biphenyl unit at P3. A second series of HIVP inhibitors were obtained by converting the P3 group into acyl groups. CbzAsn[Phe-HEA-Pro]IlePheOMe and Qua-Asn-[Phe-HEA-Pro]-Ile-Phe-OMe (where Qua = quinolin-2-ylcarbonyl) are potent HIVP inhibitors with K(i) values equal to 1.0 and 0.1 nM, respectively. The inhibition constants were determined by using the continuous fluorometric assay developed by Toth and Marshall. The activities of the protease inhibitors for inhibition of SIV replication were determined in vitro using CEMX174 cells. Inhibition of HIV infection was determined essentially as reported by Pauwels and co-workers. The anti-HIV assay was carried out in culture using CEM cell (a CD4+ lymphocyte line) infected with virus strain HTLV-IIIb with a multiplicity of infection of 0.1. Several analogues inhibited the cytopathic effect at concentrations of 0.1-0.8 mug/mL. These results establish that good inhibitors of HIV protease that inhibit viral replication in infected lymphocytes in in vitro cell assays can be obtained from JG-365 when the AcSerLeu unit is replaced by aromatic acyl derivatives.