(R)-2-Benzyl-1-(4-methoxy-benzyl)-4-oxo-azetidine-2-carboxylic acid (1S,2R,4R)-1-[(dicyclohexylsulfamoyl)-methyl]-7,7-dimethyl-bicyclo[2.2.1]hept-2-yl ester | 439589-37-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 内酰胺类
• 英文名称: (R)-2-Benzyl-1-(4-methoxy-benzyl)-4-oxo-azetidine-2-carboxylic acid (1S,2R,4R)-1-[(dicyclohexylsulfamoyl)-methyl]-7,7-dimethyl-bicyclo[2.2.1]hept-2-yl ester
• 英文别名: [(1S,2R,4R)-1-(dicyclohexylsulfamoylmethyl)-7,7-dimethyl-2-bicyclo[2.2.1]heptanyl] (2R)-2-benzyl-1-[(4-methoxyphenyl)methyl]-4-oxoazetidine-2-carboxylate
• CAS: 439589-37-4
• 化学式: C₄₁H₅₆N₂O₆S
• 分子量: 704.971
• InChiKey: XLJJNYPSXZYIAH-JAGRAOIASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8
• 重原子数：
  50
• 可旋转键数：
  13
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.66
• 拓扑面积：
  102
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  (R)-2-Benzyl-1-(4-methoxy-benzyl)-4-oxo-azetidine-2-carboxylic acid (1S,2R,4R)-1-[(dicyclohexylsulfamoyl)-methyl]-7,7-dimethyl-bicyclo[2.2.1]hept-2-yl ester 在 sodium hydroxide 、 (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、 三乙胺 作用下， 以 甲醇 为溶剂， 生成 Pmb-α-Bzl-Azn-L-Ala-OMe
  参考文献：
  名称：

  General Approach for the Stereocontrolled Construction of the β-Lactam Ring in Amino Acid-Derived 4-Alkyl-4-carboxy-2-azetidinones

  摘要：

  The first general approach toward the asymmetric synthesis of 4-alkyl-4-carboxy-2-azetidinones derived from amino acids is described. The stereoselective construction of the beta-lactam ring was achieved through base-mediated intramolecular cyclization of the corresponding N-alpha-chloroacetyl derivatives bearing (+)- or (-)-10-(N,N-dicyclohexylsulfamoyl)isoborneol as chiral auxiliary (ee up to 82%).

  DOI：

  10.1021/jo025571j
• 作为产物：
  描述：

  Cbz,PMB-Phe-OH 在 palladium on activated charcoal 4-二甲氨基吡啶 、 氢气 、 caesium carbonate 、 N,N'-二环己基碳二亚胺 、 methyloxirane 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 乙腈 为溶剂， 20.0 ℃ 、103.42 kPa 条件下， 反应 265.0h， 生成 (R)-2-Benzyl-1-(4-methoxy-benzyl)-4-oxo-azetidine-2-carboxylic acid (1S,2R,4R)-1-[(dicyclohexylsulfamoyl)-methyl]-7,7-dimethyl-bicyclo[2.2.1]hept-2-yl ester
  参考文献：
  名称：

  General Approach for the Stereocontrolled Construction of the β-Lactam Ring in Amino Acid-Derived 4-Alkyl-4-carboxy-2-azetidinones

  摘要：

  The first general approach toward the asymmetric synthesis of 4-alkyl-4-carboxy-2-azetidinones derived from amino acids is described. The stereoselective construction of the beta-lactam ring was achieved through base-mediated intramolecular cyclization of the corresponding N-alpha-chloroacetyl derivatives bearing (+)- or (-)-10-(N,N-dicyclohexylsulfamoyl)isoborneol as chiral auxiliary (ee up to 82%).

  DOI：

  10.1021/jo025571j

文献信息

• General Approach for the Stereocontrolled Construction of the β-Lactam Ring in Amino Acid-Derived 4-Alkyl-4-carboxy-2-azetidinones
  作者：Guillermo Gerona-Navarro、M. Teresa García-López、Rosario González-Muñiz

  DOI：10.1021/jo025571j

  日期：2002.5.1

  The first general approach toward the asymmetric synthesis of 4-alkyl-4-carboxy-2-azetidinones derived from amino acids is described. The stereoselective construction of the beta-lactam ring was achieved through base-mediated intramolecular cyclization of the corresponding N-alpha-chloroacetyl derivatives bearing (+)- or (-)-10-(N,N-dicyclohexylsulfamoyl)isoborneol as chiral auxiliary (ee up to 82%).