ethyl 2-(5-(4-methoxybenzyl)tetrazolyl)acetate | 91660-71-8

• 英文名称: ethyl 2-(5-(4-methoxybenzyl)tetrazolyl)acetate
• 英文别名: ethyl 2-[1-[(4-methoxyphenyl)methyl]tetrazol-5-yl]acetate
• CAS: 91660-71-8
• 化学式: C₁₃H₁₆N₄O₃
• 分子量: 276.295
• InChiKey: PKQQHUDZMFGEQJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.84
• 重原子数：
  20.0
• 可旋转键数：
  6.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  79.13
• 氢给体数：
  0.0
• 氢受体数：
  7.0

反应信息

• 作为反应物：
  描述：

  ethyl 2-(5-(4-methoxybenzyl)tetrazolyl)acetate 在 lithium hydroxide 作用下， 生成 [1-(4-methoxybenzyl)-1H-tetrazol-5-yl]acetic acid
  参考文献：
  名称：

  N-Terminal carboxyl and tetrazole-containing amides as adjuvants to Grb2 SH2 domain ligand binding

  摘要：

  High affinity binding of peptides to Src homology 2 (SH2) domains, often requires the presence of phosphotyrosyl (pTyr) or pTyr-mimicking moieties in the N-terminal position of the binding ligand. Several reports have shown that N-alpha-acylation of the critical pTyr residue can result in increased SH2 domain binding potency. For Grb2 SH2 domains which recognize pTyr-Xxx-Asn-NH2 motifs, significant potency enhancement can be incurred by N-alpha-(3-amino)Z derivatization of tripeptides such as pTyr-Xxe-Asn-NH2. Using ligands based on the high affinity pY-Ac(6)c-Asn-(naphthylpropylamide) motif, (where Ac(6)c = 1-aminocyclohex-anecarboxylic acid), additional reports have shown moderate potentiating effects of N-alpha-oxalyl derivatization. The current study examined variations of the N-alpha-oxalyl theme in the context of a Xxx-Ac(6)c-Asn-(naphthylpropylamide) platform, where Xxx = the hydrolytically stable pTyr mimetics phosphonomethyl phenylalanine (Pmp) or carboxymethyl phenylalanine (Cmf). The effects of N-alpha-(3-amino)Z derivatization were also investigated for this platform, to ascertain whether the large binding enhancement reported for tripeptides such as pTyr-Ile-Asn-NH2 could be observed. In ELISA-based extracellular Grb2 SH2 domain binding assays, it was found for the Pmp-based series, that extending the oxalyl carboxyl out by one methylene unit or replacing carboxyl functionality with a tetrazole isostere, resulted in binding potency greater than the parent N-alpha-acetyl-containing compound, with enhancement approximating that observed for the N-alpha-oxalyl derivative. When Cmf was used as the pTyr mimetic, only modest differences in IC50 values were observed for the series. Examination of the N-alpha-(3-amino)Z derivatized Pmp-Ac(6)c-Asn-(naphthylpropylamide), showed that binding affinity was reduced relative to the parent N-alpha-acetyl analogue, in contrast to the reported significant enhancement of affinity observed with other peptide ligands. Treatment of MDA-453 tumor cells, which are mitogenically driven through erbB-2 tyrosine kinase-dependent pathways, with Pmp-containing inhibitors resulted in growth inhibition, with the N-alpha-oxalyl and N-alpha-malonyl-containing compounds exhibiting IC50 values (4.3 and 4.6 muM, respectively) approximately five-fold lower than the parent N-alpha-acetyl-containing compound. Tetrazole and N-alpha-(3-amino)Z-containing inhibitors were from two- to four-fold less potent than these latter analogues in the growth inhibition assays. (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0968-0896(01)00014-1
• 作为产物：
  描述：

  1H-四唑-5-乙酸乙酯 、 4-甲氧基氯苄 在 三乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 93.0h， 生成 ethyl 2-[2-(4-methoxybenzyl)-2H-1,2,3,4-tetrazol-5-yl]acetate 、 ethyl 2-(5-(4-methoxybenzyl)tetrazolyl)acetate
  参考文献：
  名称：

  A Reagent, Ethyl 2-(2-tert-Butyl-2H-tetrazol-5-yl)-3-(dimethylamino)acrylate (DMTE), for Facile Synthesis of 2,3-(Ring Fused)-5-(5-teratzolyl)-4H-pyrimidin-4-one Derivatives.

  摘要：

  描述了一种由 2-(2-叔丁基-2H-四唑-5-基)-3-(二甲基氨基)丙烯酸乙酯 (DMTE) (4a) 和氨基杂环合成 2，3-(环融合)-5-(5-四唑基)-4H-嘧啶-4-酮衍生物的方法。DMTE 由 (2-tert-butyl-2H-tetrazol-5-yl)ethyl acetate (3a) 与二甲基甲酰胺二乙缩醛制备而成，通过 X 射线分析确定其结构为 Z 型。2-amino-5-methyloxazole (6) 与 DMTE 在乙酸中反应得到噁唑并[3, 2-a]嘧啶衍生物 (8)，在浓硫酸中加热得到所需的四唑衍生物 (20)。嘧啶并[2，1-b]苯并噻唑（21）、吡唑并[1，5-a]嘧啶（22 和 23）和[1，2，4]三唑并[1，5-a]嘧啶（24）衍生物的制备方法类似。

  DOI：

  10.1248/cpb.39.1099