(2'S)-2-(2'-amino-2'-methoxycarbonylethyl)-6-methyl-4-phenylpyridine-3,5-dicarboxylic acid di-tert-butyl ester | 596828-25-0

• 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: (2'S)-2-(2'-amino-2'-methoxycarbonylethyl)-6-methyl-4-phenylpyridine-3,5-dicarboxylic acid di-tert-butyl ester
• 英文别名: ditert-butyl 2-[(2S)-2-amino-3-methoxy-3-oxopropyl]-6-methyl-4-phenylpyridine-3,5-dicarboxylate
• CAS: 596828-25-0
• 化学式: C₂₆H₃₄N₂O₆
• 分子量: 470.566
• InChiKey: MIHUXAPITRWPNR-KRWDZBQOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  34
• 可旋转键数：
  11
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  118
• 氢给体数：
  1
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  (R)-(+)-α-甲氧基-α-(三氟甲基)苯乙酸 、 (2'S)-2-(2'-amino-2'-methoxycarbonylethyl)-6-methyl-4-phenylpyridine-3,5-dicarboxylic acid di-tert-butyl ester 在 4-二甲氨基吡啶 、 N,N'-二环己基碳二亚胺 作用下， 以 二氯甲烷 为溶剂， 反应 12.0h， 以100%的产率得到(2'S,2''R)-2-[2'-methoxycarbonyl-2'-(3'',3'',3''-trifluoro-2''-methoxy-2''-phenylpropionylamino)ethyl]-6-methyl-4-phenylpyrdine-3,5-dicarboxylic acid di-tert-butyl ester
  参考文献：
  名称：

  Model Studies toward the Synthesis of Dihydropyrimidinyl and Pyridyl α-Amino Acids via Three-Component Biginelli and Hantzsch Cyclocondensations

  摘要：

  A novel and versatile strategy for the synthesis of heterocyclic a-amino acids has been described. The use of components (aldehyde or beta-ketoester) bearing a masked glycinyl moiety in Biginelli and Hantzsch cyclocondensations allowed access to the 4-dihydropyrimidinyl-alpha-glycines, 4-dihydropyrimidinyl-alpha-alanines, 4-pyridyl-alpha-alanines, and 2-pyridyl-alpha-alanines classes. Dihydropyrimidinyl-amino acids were obtained as a mixture of diastereoisomers due to the formation of the stereocenter at C4 of the dibydropyrimidinone ring. Individual stereoisomers were isolated as pure compounds and their structures were assigned with the aid of X-ray crystallography and chiroptical properties. The enantiomeric purity of a representative selection of the above amino acids was greater than 96% as verified by derivatization to the corresponding Mosher's amides and subsequent H-1 and F-19 NMR spectroscopy. Incorporation of the 4-pyridyl-alpha-alanine derivative into a peptide chain is also described.

  DOI：

  10.1021/jo0342830
• 作为产物：
  描述：

  (2'S)-2-(2'-tert-butoxycarbonylamino-2'-carboxyethyl)-6-methyl-4-phenylpyridine-3,5-dicarboxylic acid di-tert-butyl ester 在 三氟乙酸 作用下， 以 甲醇 、 乙醚 、 二氯甲烷 为溶剂， 反应 0.08h， 生成 (2'S)-2-(2'-amino-2'-methoxycarbonylethyl)-6-methyl-4-phenylpyridine-3,5-dicarboxylic acid di-tert-butyl ester
  参考文献：
  名称：

  Model Studies toward the Synthesis of Dihydropyrimidinyl and Pyridyl α-Amino Acids via Three-Component Biginelli and Hantzsch Cyclocondensations

  摘要：

  A novel and versatile strategy for the synthesis of heterocyclic a-amino acids has been described. The use of components (aldehyde or beta-ketoester) bearing a masked glycinyl moiety in Biginelli and Hantzsch cyclocondensations allowed access to the 4-dihydropyrimidinyl-alpha-glycines, 4-dihydropyrimidinyl-alpha-alanines, 4-pyridyl-alpha-alanines, and 2-pyridyl-alpha-alanines classes. Dihydropyrimidinyl-amino acids were obtained as a mixture of diastereoisomers due to the formation of the stereocenter at C4 of the dibydropyrimidinone ring. Individual stereoisomers were isolated as pure compounds and their structures were assigned with the aid of X-ray crystallography and chiroptical properties. The enantiomeric purity of a representative selection of the above amino acids was greater than 96% as verified by derivatization to the corresponding Mosher's amides and subsequent H-1 and F-19 NMR spectroscopy. Incorporation of the 4-pyridyl-alpha-alanine derivative into a peptide chain is also described.

  DOI：

  10.1021/jo0342830