4-benzyl-4-methoxycarbonyl-2-azetidinone | 344765-44-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 4-benzyl-4-methoxycarbonyl-2-azetidinone
• 英文别名: Methyl 2-benzyl-4-oxoazetidine-2-carboxylate
• CAS: 344765-44-2
• 化学式: C₁₂H₁₃NO₃
• 分子量: 219.24
• InChiKey: JEJSDEHSPOZXKV-UHFFFAOYSA-N

物化性质

• 沸点：
  394.2±35.0 °C(Predicted)
• 密度：
  1.232±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  55.4
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (S)-(-)-1-苯乙基异氰酸酯 、 4-benzyl-4-methoxycarbonyl-2-azetidinone 在 caesium carbonate 作用下， 以 四氢呋喃 为溶剂， 以62%的产率得到methyl (2S)-2-benzyl-4-oxo-1-[[(1S)-1-phenylethyl]carbamoyl]azetidine-2-carboxylate
  参考文献：
  名称：

  From 1-Acyl-β-lactam Human Cytomegalovirus Protease Inhibitors to 1-Benzyloxycarbonylazetidines with Improved Antiviral Activity. A Straightforward Approach To Convert Covalent to Noncovalent Inhibitors

  摘要：

  Starting from the structure of known beta-lactam covalent human cytomegalovirus (HCMV) protease inhibitors and from the knowledge of the residues implicated in the active site of this enzyme, we designed a series of phenylalanine-derived 2-azetidinones bearing a 4-carboxylate moiety that could be apt for additional interactions with the guanidine group of the Arg165/ Arg166 residues of the viral protease. Some compounds within this series showed anti-HCMV activity at 10-50 mu M, but rather high toxicity. The presence of aromatic 1-acyl groups and a certain hydrophobic character in the region of the 4-carboxylate were stringent requirements for anti-HCMV activity. To go a step ahead into the search for effective HCMV medicines, we then envisaged a series of noncovalent inhibitors by simple deletion of the carbonyl group in the beta-lactam derivatives to provide the corresponding azetidines. This led to low micromolar inhibitors of HCMV replication, with 17 and 27 being particularly promising lead compounds for further investigation, although their toxicity still needs to be lowered.

  DOI：

  10.1021/jm0492812
• 作为产物：
  描述：

  (S)-methyl 2-(2-chloro-N-(4-methoxybenzyl)acetamido)-3-phenylpropanoate 在 dipotassium hydrogenphosphate 、 dipotassium peroxodisulfate 、 caesium carbonate 作用下， 以 水 、 乙腈 为溶剂， 反应 146.0h， 生成 4-benzyl-4-methoxycarbonyl-2-azetidinone
  参考文献：
  名称：

  Gerona-Navarro, Guillermo; Bonache, MaAngeles; Reyero, Nuria, Heterocycles, 2002, vol. 57, # 3, p. 501 - 513

  摘要：

  DOI：

文献信息

• Entry to New Conformationally Constrained Amino Acids. First Synthesis of 3-Unsubstituted 4-Alkyl-4-carboxy-2-azetidinone Derivatives via an Intramolecular <i>N</i>^α<i>-C</i>^α-Cyclization Strategy
  作者：Guillermo Gerona-Navarro、Maria Angeles Bonache、Rosario Herranz、Maria Teresa García-López、Rosario González-Muñiz

  DOI：10.1021/jo015559b

  日期：2001.5.1

  N-benzyl-N-chloroacetyl amino acid derivatives is described. This study resulted in the first concise and versatile route to the preparation of 3-unsubstituted 4-alkyl-4-carboxy-2-azetidinones, to be included into the scarce family of beta-lactams with quaternary centers at the C(4) position. Particularly noteworthy is that the intramolecular N(alpha)-C(alpha)-cyclization of Phe and Leu derivatives afforded the

  描述了N-苄基-N-氯乙酰基氨基酸衍生物的碱基辅助分子内烷基化的系统研究。这项研究导致了第一个简洁而通用的制备3-未取代的4-烷基-4-羧基-2-氮杂环丁酮的方法，该方法将被包括在稀有的β-内酰胺类家族中，其四元中心在C（4）位置。特别值得注意的是，Phe和Leu衍生物的分子内Nα-Cα-环化作用提供了具有中等对映选择性（最高56％）的相应β-内酰胺衍生物。建议在这些特殊情况下，通过具有动态手性的平面烯醇中间体进行环化反应。所描述的反应顺序，与常用的α-羧基保护基团相容，