N-tert-butoxycarbonyl glycyl-L-serine allyl ester | 212120-09-7

• 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: N-tert-butoxycarbonyl glycyl-L-serine allyl ester
• CAS: 212120-09-7
• 化学式: C₁₃H₂₂N₂O₆
• 分子量: 302.327
• InChiKey: WNZNICNZYJRSGX-VIFPVBQESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.28
• 重原子数：
  21.0
• 可旋转键数：
  7.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.62
• 拓扑面积：
  113.96
• 氢给体数：
  3.0
• 氢受体数：
  6.0

反应信息

• 作为反应物：
  描述：

  N-tert-butoxycarbonyl glycyl-L-serine allyl ester 在 1-羟基苯并三唑 、 达卡巴嗪 、 三乙胺 、 三氟乙酸 作用下， 生成 Hexadecanoic acid (S)-2-allyloxycarbonyl-2-{2-[6-(4-nitro-benzo[c]isoxazol-7-ylamino)-hexanoylamino]-acetylamino}-ethyl ester
  参考文献：
  名称：

  Chemoenzymatic Synthesis of N-Ras Lipopeptides

  摘要：

  For the study of biological phenomena influenced by the plasma-membrane-bound Ras proteins and other lipidated proteins, characteristic peptides which embody the correct lipid modifications of their parent proteins (palmitoyl thioesters and farnesyl thioethers), as well as analogues thereof, may serve as suitable tools. For the construction of such acid- and base-labile peptide conjugates, the enzyme-labile p-acetoxybenzyloxycarbonyl (AcOZ) urethane blocking group was developed. The acetate moiety within the AcOZ group is easily saponified by treatment with acetyl esterase or lipase. After cleavage of the acetate group the resulting quinone methide spontaneously fragments, resulting in the liberation of the desired peptide or peptide conjugates. This enzymatic protecting group technique formed the key step in the synthesis of the characteristic S-palmitoylated and S-farnesylated C-terminus of the human N-Ras protein. Deprotections are so mild that no undesired side reactions of the lipid conjugates are observed (i.e., no hydrolysis or beta-elimination of the thioester and no acid-mediated attack on the double bonds of the farnesyl group). The combination of enzymatic protecting group techniques with classical chemical methods allowed access to various fluorescent-labeled and differently lipid-modified Rns lipopeptides. Their application in biological experiments enabeled the study of the structural requirements for the acylation of Ras sequence motifs in vivo and gave insight into the subcellular site at which these modifications occur. The results indicate that the plasma membrane is a major site of cellular S-acylation. This supports a mechanism for the selective subcellular localization of lipidated proteins, including the Rns proteins themselves, by kinetic targeting to the plasma membrane.

  DOI：

  10.1021/ja9805627
• 作为产物：
  描述：

  BOC-甘氨酸 、 L-Serin-allylester-hydro-p-toluolsulfonat 在 2-乙氧基-1-乙氧碳酰基-1,2-二氢喹啉 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 以54%的产率得到N-tert-butoxycarbonyl glycyl-L-serine allyl ester
  参考文献：
  名称：

  Synthesis of a triply phosphorylated pentapeptide from human τ-protein

  摘要：

  Two different strategies for the synthesis of a triply phosphorylated pentapeptide are described. In both cases a monophosphorylated selectively N-deprotected tripeptide is employed as C-terminal fragment. Coupling of this building block with a C-terminally unmasked bis-phosphorylated seryl-dipeptide unexpectedly failed due to decomposition of this peptide upon activation with different coupling reagents. Instead stepwise N-terminal elongation of the peptide chain with serine derivatives and subsequent O-phosphorylation of the serine OH-groups was successful. These results indicate that assembly of multiply phosphorylated peptides from preformed multiply phosphorylated phosphopeptide building blocks in general may be problematic and that a stepwise elongation of the amino acid chain may be preferable. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0968-0896(00)00174-7