2-[3-(1-methyl-1,2,3,6-tetrahydropyridin-4-yl)-1H-indol-5-yl]ethanesulfonic acid benzylmethylamide | 639008-14-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: 2-[3-(1-methyl-1,2,3,6-tetrahydropyridin-4-yl)-1H-indol-5-yl]ethanesulfonic acid benzylmethylamide
• 英文别名: N-benzyl-N-methyl-2-[3-(1-methyl-3,6-dihydro-2H-pyridin-4-yl)-1H-indol-5-yl]ethanesulfonamide
• CAS: 639008-14-3
• 化学式: C₂₄H₂₉N₃O₂S
• 分子量: 423.579
• InChiKey: VDLQTDJJHWJWNF-UHFFFAOYSA-N

物化性质

• 熔点：
  188-190 °C(Solv: ethanol (64-17-5))
• 沸点：
  636.5±65.0 °C(Predicted)
• 密度：
  1.244±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  30
• 可旋转键数：
  7
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  64.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-[3-(1-methyl-1,2,3,6-tetrahydropyridin-4-yl)-1H-indol-5-yl]ethanesulfonic acid benzylmethylamide 在 palladium on activated charcoal 氢气 、 sodium 作用下， 以 四氢呋喃 、 甲醇 、 氨 为溶剂， -78.0~20.0 ℃ 、500.0 kPa 条件下， 反应 6.75h， 生成 那拉曲坦
  参考文献：
  名称：

  Synthesis of 5-Substituted Indole Derivatives. Part 4: Naratriptan from α-Anilinoacetaldehyde Dimethylacetal by TiCl4-Mediated Cyclisation

  摘要：

  N-Methyl-3-(1-methyl-4-piperidinyl)-1H-indole-5-ethanesulfonamide (Naratriptan, 2) was prepared from N-methyl-N-phenylmethyl-2-(4-aminophenyl)ethanesulfonamide (3b) through reductive alkylation with dimethoxyacetaldehyde followed by N-acylation and TiCl4-mediated indolisation, according to Sundberg procedure. The isopropyl group proved to be a useful protecting group for sulfonate esters in a number of transformations but was cleaved in the presence of TiCl4.

  DOI：

  10.3987/com-03-9838
• 作为产物：
  描述：

  2-[1-(2,2,2-trifluoroacetyl)-1H-indol-5-yl]ethanesulfonic acid benzylmethylamide 在 氢氧化钾 作用下， 以 甲醇 为溶剂， 反应 10.0h， 生成 2-[3-(1-methyl-1,2,3,6-tetrahydropyridin-4-yl)-1H-indol-5-yl]ethanesulfonic acid benzylmethylamide
  参考文献：
  名称：

  Synthesis of 5-Substituted Indole Derivatives. Part 4: Naratriptan from α-Anilinoacetaldehyde Dimethylacetal by TiCl4-Mediated Cyclisation

  摘要：

  N-Methyl-3-(1-methyl-4-piperidinyl)-1H-indole-5-ethanesulfonamide (Naratriptan, 2) was prepared from N-methyl-N-phenylmethyl-2-(4-aminophenyl)ethanesulfonamide (3b) through reductive alkylation with dimethoxyacetaldehyde followed by N-acylation and TiCl4-mediated indolisation, according to Sundberg procedure. The isopropyl group proved to be a useful protecting group for sulfonate esters in a number of transformations but was cleaved in the presence of TiCl4.

  DOI：

  10.3987/com-03-9838

文献信息

• [EN] NOVEL PROCESS FOR THE PREPARATION OF NARATRIPTAN HYDROCHLORIDE<br/>[FR] NOUVEAU PROCÉDÉ DESTINÉ À LA PRÉPARATION DE NARATRIPTAN
  申请人：NATCO PHARMA LTD

  公开号：WO2008056378A2

  公开（公告）日：2008-05-15

  [EN] Present invention provides a novel and improved process for the preparation of N- methyl-1H-indole-5-ethanesulfonamide of formula (I). Compound of formula (I) is a key intermediate used in the synthesis of naratriptan hydrochloride of formula (II). Hydrazone derivative of formula (XL) derived from the corresponding hydrazine and pyruvate ester is reacted with an acid catalyst to get the indole-2-carboxylate derivative of formula (XLI). Hydrolysis of this ester and decarboxylation gave the compound of formula (I). Naratriptan hydrochloride (Amerge) is widely used as anti-migraine drug in the market.
  [FR] La présente invention concerne un nouveau procédé amélioré destiné à la préparation de N- méthyl-1H-indole-5-éthanesulfonamide représenté par la formule (I). Le composé représenté par la formule (I) est un intermédiaire clé utilisé dans la synthèse de naratriptan représenté par la formule (II). On fait réagir un dérivé d'hydrazone représenté par la formule (XL) dérivé de l'hydrazine et de l'ester de pyruvate correspondants avec un catalyseur acide afin d'obtenir le dérivé d'indole-2-carboxylate représenté par la formule (XLI). On obtient le composé représenté par la formule (I) par hydrolyse et décarboxylation de cet ester. Le naratriptan (Amerge) est largement utilisé en tant que médicament antimigraineux sur le marché.
• Synthesis of 5-Substituted Indole Derivatives. Part 4: Naratriptan from α-Anilinoacetaldehyde Dimethylacetal by TiCl4-Mediated Cyclisation
  作者：Béla Pete、Gyula Simig、László Poszávácz、László Toke

  DOI：10.3987/com-03-9838

  日期：——

  N-Methyl-3-(1-methyl-4-piperidinyl)-1H-indole-5-ethanesulfonamide (Naratriptan, 2) was prepared from N-methyl-N-phenylmethyl-2-(4-aminophenyl)ethanesulfonamide (3b) through reductive alkylation with dimethoxyacetaldehyde followed by N-acylation and TiCl4-mediated indolisation, according to Sundberg procedure. The isopropyl group proved to be a useful protecting group for sulfonate esters in a number of transformations but was cleaved in the presence of TiCl4.