| 1365337-90-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• CAS: 1365337-90-1
• 化学式: C₁₁H₉F₃N₂O₅S
• 分子量: 338.264
• InChiKey: ZUGRJPJRKSOOEL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.67
• 重原子数：
  22.0
• 可旋转键数：
  4.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  106.35
• 氢给体数：
  0.0
• 氢受体数：
  7.0

反应信息

• 作为反应物：
  描述：

  、 二乙胺 以 二甲基亚砜 为溶剂， 以99%的产率得到ethyl 3-cyano-2-(diethylamino)-6-methylisonicotinate
  参考文献：
  名称：

  Practical and Scalable Synthesis of S1P₁ Receptor Agonist ACT-209905

  摘要：

  A practical and scalable route for the fast delivery of 12 kg of S1P(1) agonist (ACT-209905) has been developed. ACT-209905 is composed of an amino pyridine group, an oxadiazole spacer, a 2-ethyl-5-methylphenol moiety and a chiral 1-amino-2-propanol side chain. The convergent synthesis consists of 16 steps with 9 isolated intermediates and is chromatography-free. Key building blocks are accessed from low-cost starting materials, such as acetone, diethyl oxalate, cyanoacetamide, and 2-ethyl-5-methyl aniline. A Negishi coupling that was troubled by the use of metal reagents and concomitant metal waste streams has been replaced by a less expensive Guareschi-Thorpe reaction to build up an amino isonicotinic acid. The chiral 1-amino-2-propanol moiety was secured by selective ring-opening of an epoxide with lithium hexamethyldisilazide as an ammonia surrogate, thus omitting the notorious double alkylated byproduct.

  DOI：

  10.1021/op200326s
• 作为产物：
  描述：

  3-氰基-1,2-二氢-6-甲基-2-氧代-4-吡啶羧酸乙酯 、 三氟甲磺酸酐 在 吡啶 作用下， 以 二氯甲烷 为溶剂， 以93%的产率得到
  参考文献：
  名称：

  Practical and Scalable Synthesis of S1P₁ Receptor Agonist ACT-209905

  摘要：

  A practical and scalable route for the fast delivery of 12 kg of S1P(1) agonist (ACT-209905) has been developed. ACT-209905 is composed of an amino pyridine group, an oxadiazole spacer, a 2-ethyl-5-methylphenol moiety and a chiral 1-amino-2-propanol side chain. The convergent synthesis consists of 16 steps with 9 isolated intermediates and is chromatography-free. Key building blocks are accessed from low-cost starting materials, such as acetone, diethyl oxalate, cyanoacetamide, and 2-ethyl-5-methyl aniline. A Negishi coupling that was troubled by the use of metal reagents and concomitant metal waste streams has been replaced by a less expensive Guareschi-Thorpe reaction to build up an amino isonicotinic acid. The chiral 1-amino-2-propanol moiety was secured by selective ring-opening of an epoxide with lithium hexamethyldisilazide as an ammonia surrogate, thus omitting the notorious double alkylated byproduct.

  DOI：

  10.1021/op200326s