ethyl N-(diphenylmethylene)-DL-cyclohexylalaninate | 1048676-57-8

• 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: ethyl N-(diphenylmethylene)-DL-cyclohexylalaninate
• CAS: 1048676-57-8
• 化学式: C₂₄H₂₉NO₂
• 分子量: 363.5
• InChiKey: IHFZXGFMPLQHON-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.43
• 重原子数：
  27.0
• 可旋转键数：
  7.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  38.66
• 氢给体数：
  0.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  ethyl N-(diphenylmethylene)-DL-cyclohexylalaninate 在 盐酸 、 lithium hydroxide 作用下， 以 四氢呋喃 、 乙醚 、 二氯甲烷 、 水 为溶剂， 生成 N-boc-dl-3-环己基丙氨酸
  参考文献：
  名称：

  Discovery of (1R,5S)-N-[3-Amino-1-(cyclobutylmethyl)-2,3-dioxopropyl]- 3-[2(S)-[[[(1,1-dimethylethyl)amino]carbonyl]amino]-3,3-dimethyl-1-oxobutyl]- 6,6-dimethyl-3-azabicyclo[3.1.0]hexan-2(S)-carboxamide (SCH 503034), a Selective, Potent, Orally Bioavailable Hepatitis C Virus NS3 Protease Inhibitor:  A Potential Therapeutic Agent for the Treatment of Hepatitis C Infection

  摘要：

  Hepatitis C virus (HCV) infection is the major cause of chronic liver disease, leading to cirrhosis and hepatocellular carcinoma, which affects more than 170 million people worldwide. Currently the only therapeutic regimens are subcutaneous interferon-alpha or polyethylene glycol (PEG)-interferon-alpha alone or in combination with oral ribavirin. Although combination therapy is reasonably successful with the majority of genotypes, its efficacy against the predominant genotype (genotype 1) is moderate at best, with only about 40% of the patients showing sustained virological response. Herein, the SAR leading to the discovery of 70 (SCH 503034), a novel, potent, selective, orally bioavailable NS3 protease inhibitor that has been advanced to clinical trials in human beings for the treatment of hepatitis C viral infections is described. X-ray structure of inhibitor 70 complexed with the NS3 protease and biological data are also discussed.

  DOI：

  10.1021/jm060325b
• 作为产物：
  描述：

  二苯亚甲基甘氨酸乙酯 、 alkaline earth salt of/the/ methylsulfuric acid 在 potassium tert-butylate 作用下， 以 四氢呋喃 为溶剂， 生成 ethyl N-(diphenylmethylene)-DL-cyclohexylalaninate
  参考文献：
  名称：

  Discovery of (1R,5S)-N-[3-Amino-1-(cyclobutylmethyl)-2,3-dioxopropyl]- 3-[2(S)-[[[(1,1-dimethylethyl)amino]carbonyl]amino]-3,3-dimethyl-1-oxobutyl]- 6,6-dimethyl-3-azabicyclo[3.1.0]hexan-2(S)-carboxamide (SCH 503034), a Selective, Potent, Orally Bioavailable Hepatitis C Virus NS3 Protease Inhibitor:  A Potential Therapeutic Agent for the Treatment of Hepatitis C Infection

  摘要：

  Hepatitis C virus (HCV) infection is the major cause of chronic liver disease, leading to cirrhosis and hepatocellular carcinoma, which affects more than 170 million people worldwide. Currently the only therapeutic regimens are subcutaneous interferon-alpha or polyethylene glycol (PEG)-interferon-alpha alone or in combination with oral ribavirin. Although combination therapy is reasonably successful with the majority of genotypes, its efficacy against the predominant genotype (genotype 1) is moderate at best, with only about 40% of the patients showing sustained virological response. Herein, the SAR leading to the discovery of 70 (SCH 503034), a novel, potent, selective, orally bioavailable NS3 protease inhibitor that has been advanced to clinical trials in human beings for the treatment of hepatitis C viral infections is described. X-ray structure of inhibitor 70 complexed with the NS3 protease and biological data are also discussed.

  DOI：

  10.1021/jm060325b

文献信息

• Efficient Synthesis of <font>α</font>-Substituted Amino Acid Ester: Alkylation and Hydrogenation Removal of Schiff's Base Protecting Group
  作者：Aslam M. Ansari、Sydney O. Ugwu

  DOI：10.1080/00397910802138611

  日期：2008.6.27

  Abstract A general and efficient synthetic route to α-amino acids by alkylation of the sodium salt of Schiff base ester 1 has been described previously. The α-substituted ethyl glycinates 4a–g are prepared in excellent yield by a two-step sequence involving regioselective alkylation of the anionic glycine synthon 2 with various alkyl halides, followed by purification of the alkylated Schiff base on

  摘要 先前已经描述了通过席夫碱酯 1 的钠盐的烷基化来合成 α-氨基酸的通用且有效的路线。α-取代的甘氨酸乙酯 4a-g 通过两步序列以极好的收率制备，包括用各种卤代烷对阴离子甘氨酸合成子 2 进行区域选择性烷基化，然后在 Florisil 上纯化烷基化的希夫碱，并通过催化氢解进行裂解。侧链上的可还原基团可以减少或保留，这取决于所用的去保护方法。方案一