Fmoc-Glu-NH-Bn | 868523-87-9

• 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: Fmoc-Glu-NH-Bn
• 英文别名: Fmoc-Glu-NHBn；(4S)-5-(benzylamino)-4-(9H-fluoren-9-ylmethoxycarbonylamino)-5-oxopentanoic acid
• CAS: 868523-87-9
• 化学式: C₂₇H₂₆N₂O₅
• 分子量: 458.514
• InChiKey: MMOCIVUDQPTMIE-DEOSSOPVSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  34
• 可旋转键数：
  10
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  105
• 氢给体数：
  3
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  Fmoc-Glu-NH-Bn 、 4-(di-tert-butylphosphoryl)cinnamic acid 、 Fmoc-L-亮氨酸 、 Fmoc-L-脯氨酸 在 benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate 、 1-羟基苯并三唑 、 N,N-二异丙基乙胺 、 哌啶 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 生成 p-Cinn-Leu-Pro-Gln-NHBn
  参考文献：
  名称：

  Structure−Affinity Relationships of Glutamine Mimics Incorporated into Phosphopeptides Targeted to the SH2 Domain of Signal Transducer and Activator of Transcription 3

  摘要：

  In cancer cells, signal transducer and activator of transcription 3 (Stat3) participates in aberrant growth, survival, angiogenesis, and invasion signals and is a validated target for anticancer drug design. We are targeting its SH2 domain to prevent docking to cytokine and growth factor receptors and subsequent signaling. One of the important elements of the recognition sequence, pTyr-Xxx-Xxx-Gln, is glutamine. We incorporated novel Gin mimics into a lead peptide, pCinn-Leu-Pro-Gln-NHBn, and found that a linear, unconstrained side chain and carboxamide are necessary for high affinity, and the benzamide can be eliminated. Replacement of Gln-NHBn with (R)-4-aminopentanamide or 2-aminoethylurea produced inhibitors with equal or greater potency than that of the lead, as judged by fluorescence polarization (IC50 values were 110 and 130 nM, respectively). When Pro was replaced with cis-3,4-methanoproline, the glutamine mimic, (4R,5S)-4-amino-5-benzyloxyhexanamide resulted in an IC50 of 69 nM, the highest affinity Stat3 inhibitor reported to date.

  DOI：

  10.1021/jm901105k
• 作为产物：
  描述：

  Fmoc-O-叔丁基-L-谷氨酸 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 乙腈 为溶剂， 反应 1.0h， 生成 Fmoc-Glu-NH-Bn
  参考文献：
  名称：

  Investigation of the Binding Determinants of Phosphopeptides Targeted to the Src Homology 2 Domain of the Signal Transducer and Activator of Transcription 3. Development of a High-Affinity Peptide Inhibitor

  摘要：

  Signal transducer and activator of transcription 3 (Stat3) is a cytosolic transcription factor that relates signals from the cell membrane directly to the nucleus where it, in complex with other proteins, initiates the transcription of antiapoptotic and cell cycling genes, e.g., Bcl-x(L) and cyclin D1. In normal cells Stat3 transduces signals from cytokines such as IL-6 and growth factors such as the epidermal growth factor. Stat3 is constitutively activated in a number of human tumors. Antisense and dominant negative gene delivery result in apoptosis and reduced cell growth, thus this protein is an attractive target for anticancer drug design. As part of our research on the design of Src homology 2 (SH2) directed peptidomimetic inhibitors of Stat3, in this paper we describe structure-activity relationship studies that provide information on the nature of peptide-protein interactions of a high-affinity phosphopeptide inhibitor of Stat3 dimerization and DNA binding, Ac-Tyr(PO3H2)-Leu-Pro-Gln-Thr-Val-NH2, peptide 1. There is a hydrophobic surface on the SH2 domain that can accommodate lipophilic groups on the N-terminus. Of the amino acids tested, leucine provided the highest affinity at pY+1 and its main chain NH is involved with a hydrogen bond with Stat3, presumably Ser636. cis-3,4-Methanoproline is optimal as a backbone constraint at pY+2. The side chain amide protons of Gln are required for high-affinity interactions. The C-terminal dipeptide, Thr-Val, can be replaced with groups ranging in size from methyl to benzyl. We synthesized a phosphopeptide incorporating groups that provided increases in affinity at each position. Thus, hydrocinnamoyl-Tyr(PO3H2)-Leu-cis-3,4-methanoPro-Gln-NHBn, 50, was the highest affinity peptide, exhibiting an IC50 of 125 nM versus 290 nM for peptide 1 in a fluorescence polarization assay.

  DOI：

  10.1021/jm050513m

文献信息

• Glutamate aggrecanase inhibitors
  申请人：Sum Phaik-Eng

  公开号：US20070043066A1

  公开（公告）日：2007-02-22

  The present invention relates to modulators of metalloproteinase activity.

  本发明涉及金属蛋白酶活性调节剂。
• GLUTAMATE AGGRECANASE INHIBITORS
  申请人：Sum Phaik-Eng

  公开号：US20100010012A1

  公开（公告）日：2010-01-14

  The present invention relates to modulators of metalloproteinase activity.

  本发明涉及金属蛋白酶活性调节剂。
• Structure−Affinity Relationships of Glutamine Mimics Incorporated into Phosphopeptides Targeted to the SH2 Domain of Signal Transducer and Activator of Transcription 3
  作者：Pijus K. Mandal、Zhiyong Ren、Xiaomin Chen、Chiyi Xiong、John S. McMurray

  DOI：10.1021/jm901105k

  日期：2009.10.8

  In cancer cells, signal transducer and activator of transcription 3 (Stat3) participates in aberrant growth, survival, angiogenesis, and invasion signals and is a validated target for anticancer drug design. We are targeting its SH2 domain to prevent docking to cytokine and growth factor receptors and subsequent signaling. One of the important elements of the recognition sequence, pTyr-Xxx-Xxx-Gln, is glutamine. We incorporated novel Gin mimics into a lead peptide, pCinn-Leu-Pro-Gln-NHBn, and found that a linear, unconstrained side chain and carboxamide are necessary for high affinity, and the benzamide can be eliminated. Replacement of Gln-NHBn with (R)-4-aminopentanamide or 2-aminoethylurea produced inhibitors with equal or greater potency than that of the lead, as judged by fluorescence polarization (IC50 values were 110 and 130 nM, respectively). When Pro was replaced with cis-3,4-methanoproline, the glutamine mimic, (4R,5S)-4-amino-5-benzyloxyhexanamide resulted in an IC50 of 69 nM, the highest affinity Stat3 inhibitor reported to date.
• US7553873B2
  申请人：——

  公开号：US7553873B2

  公开（公告）日：2009-06-30
• Investigation of the Binding Determinants of Phosphopeptides Targeted to the Src Homology 2 Domain of the Signal Transducer and Activator of Transcription 3. Development of a High-Affinity Peptide Inhibitor
  作者：Coleman、Zhiyong Ren、Pijus K. Mandal、Arlin G. Cameron、Garrett A. Dyer、Seema Muranjan、Martin Campbell、Xiaomin Chen、John S. McMurray

  DOI：10.1021/jm050513m

  日期：2005.10.1

  Signal transducer and activator of transcription 3 (Stat3) is a cytosolic transcription factor that relates signals from the cell membrane directly to the nucleus where it, in complex with other proteins, initiates the transcription of antiapoptotic and cell cycling genes, e.g., Bcl-x(L) and cyclin D1. In normal cells Stat3 transduces signals from cytokines such as IL-6 and growth factors such as the epidermal growth factor. Stat3 is constitutively activated in a number of human tumors. Antisense and dominant negative gene delivery result in apoptosis and reduced cell growth, thus this protein is an attractive target for anticancer drug design. As part of our research on the design of Src homology 2 (SH2) directed peptidomimetic inhibitors of Stat3, in this paper we describe structure-activity relationship studies that provide information on the nature of peptide-protein interactions of a high-affinity phosphopeptide inhibitor of Stat3 dimerization and DNA binding, Ac-Tyr(PO3H2)-Leu-Pro-Gln-Thr-Val-NH2, peptide 1. There is a hydrophobic surface on the SH2 domain that can accommodate lipophilic groups on the N-terminus. Of the amino acids tested, leucine provided the highest affinity at pY+1 and its main chain NH is involved with a hydrogen bond with Stat3, presumably Ser636. cis-3,4-Methanoproline is optimal as a backbone constraint at pY+2. The side chain amide protons of Gln are required for high-affinity interactions. The C-terminal dipeptide, Thr-Val, can be replaced with groups ranging in size from methyl to benzyl. We synthesized a phosphopeptide incorporating groups that provided increases in affinity at each position. Thus, hydrocinnamoyl-Tyr(PO3H2)-Leu-cis-3,4-methanoPro-Gln-NHBn, 50, was the highest affinity peptide, exhibiting an IC50 of 125 nM versus 290 nM for peptide 1 in a fluorescence polarization assay.