(RS)-N-(benzyloxycarbonyl)-2-amino-5-(acetylthio)pentanoic acid | 144072-91-3

• 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: (RS)-N-(benzyloxycarbonyl)-2-amino-5-(acetylthio)pentanoic acid
• 英文别名: 5-Acetylsulfanyl-2-(phenylmethoxycarbonylamino)pentanoic acid
• CAS: 144072-91-3
• 化学式: C₁₅H₁₉NO₅S
• 分子量: 325.386
• InChiKey: DJJPYIHFIMVCNJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  22
• 可旋转键数：
  10
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  118
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  2-(((benzyloxy)carbonyl)amino)pent-4-enoic acid 、 硫代乙酸 在 偶氮二异丁腈 作用下， 以 甲醇 为溶剂， 反应 18.0h， 以87%的产率得到(RS)-N-(benzyloxycarbonyl)-2-amino-5-(acetylthio)pentanoic acid
  参考文献：
  名称：

  Synthesis of (optically active) sulfur-containing trifunctional amino acids by radical addition to (optically active) unsaturated amino acids

  摘要：

  Sulfur-based radicals, generated from R-S-H-type precursors (R = alkyl, acyl) with AIBN, smoothly add to alpha-allylglycines protected at none, one, or both of the amino acid functions (NH2 and/or CO2H). Sulfur-containing trifunctional amino acids were obtained in good to excellent yields (64-100%). The solvent used for the reaction is critical. Optimal results were obtained when both the unsaturated amino acid and RSH dissolve completely in the medium (dioxane/water or methanol/water are good solvent systems). The scope of the reaction includes alpha-substituted alpha-allylglycine and derivatives as well as beta-substituted beta-allyl-beta-ammo alcohols. In the case of optically active alpha-allylglycine derivatives, radical addition is accompanied by a small amount of racemization, the amount depending on the type of protection and R-S-H. The products are easily optically enriched by crystallization. Addition of sulfur-based radicals to alpha-allylglycine is believed to be an example of a general method for synthesizing optically active trifunctional amino acids from unsaturated amino acids.

  DOI：

  10.1021/jo00049a041

文献信息

• Synthesis of (optically active) sulfur-containing trifunctional amino acids by radical addition to (optically active) unsaturated amino acids
  作者：Quirinus B. Broxterman、Bernard Kaptein、Johan Kamphuis、Hans E. Schoemaker

  DOI：10.1021/jo00049a041

  日期：1992.11

  Sulfur-based radicals, generated from R-S-H-type precursors (R = alkyl, acyl) with AIBN, smoothly add to alpha-allylglycines protected at none, one, or both of the amino acid functions (NH2 and/or CO2H). Sulfur-containing trifunctional amino acids were obtained in good to excellent yields (64-100%). The solvent used for the reaction is critical. Optimal results were obtained when both the unsaturated amino acid and RSH dissolve completely in the medium (dioxane/water or methanol/water are good solvent systems). The scope of the reaction includes alpha-substituted alpha-allylglycine and derivatives as well as beta-substituted beta-allyl-beta-ammo alcohols. In the case of optically active alpha-allylglycine derivatives, radical addition is accompanied by a small amount of racemization, the amount depending on the type of protection and R-S-H. The products are easily optically enriched by crystallization. Addition of sulfur-based radicals to alpha-allylglycine is believed to be an example of a general method for synthesizing optically active trifunctional amino acids from unsaturated amino acids.