methyl 4-acetylamino-2-methylbenzofuran-7-carboxylate | 202664-66-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 英文名称: methyl 4-acetylamino-2-methylbenzofuran-7-carboxylate
• 英文别名: methyl 4-acetamido-2-methyl-1-benzofuran-7-carboxylate
• CAS: 202664-66-2
• 化学式: C₁₃H₁₃NO₄
• 分子量: 247.251
• InChiKey: PNEUONCTLRQQBR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  68.5
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  methyl 4-acetylamino-2-methylbenzofuran-7-carboxylate 在 sodium hydroxide 、 N-氯代丁二酰亚胺 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 5.0h， 生成 4-Amino-3-chloro-2-methyl-1-benzofuran-7-carboxylic acid
  参考文献：
  名称：

  Synthesis and Structure-Activity Relationship of 3-Substituted Benzamide, Benzo(b)furan-7-carboxamide, 2,3-Dihydrobenzo(b)furan-7-carboxamide, and Indole-5-carboxamide Derivatives as Selective Serotonin 5-HT4 Receptor Agonits.

  摘要：

  标题化合物（6-9）已被合成并在体外测试中评估其对血清素5-HT4的激动活性。在苯酰胺的3位引入丙基或烯丙基仅导致激动活性的轻微增强。而构建苯并[b]呱骨架和2,3-二氢苯并[b]呱骨架则显著增强了活性。4-氨基-N-[2-(1-叠氮环[3.3.0]八烷-5-基)乙基]-5-氯-2-甲基苯并[b]呱-7-羧酰胺（7b）半富马酸盐的效力与西沙必利相当。4-氨基-N-[2-(1-叠氮环[3.3.0]八烷-5-基)乙基]-5-氯-2,3-二氢-2-甲基苯并[b]呱-7-羧酰胺（8a）半富马酸盐，4-氨基-N-[2-(1-叠氮环[3.3.0]八烷-5-基)乙基]-5-氯-2,3-二氢-2-乙基苯并[b]呱-7-羧酰胺（8c）半富马酸盐，以及4-氨基-N-[2-(1-叠氮环[3.3.0]八烷-5-基)乙基]-5-氯-2,3-二氢-2,3-二甲基苯并[b]呱-7-羧酰胺（8d）半富马酸盐的效力均优于西沙必利。此外，8a半富马酸盐在体外测试中未表现出对多巴胺D1、D2、血清素5-HT1、5-HT2及毒蕈碱M1、M2受体的结合活性。另一方面，构建吲哚骨架则导致活性显著降低。

  DOI：

  10.1248/cpb.46.42
• 作为产物：
  描述：

  methyl 4-acetylamino-2-propargyloxybenzoate 以 二苯醚 为溶剂， 反应 2.0h， 以13%的产率得到methyl 5-acetylamino-2H-1-benzopyran-8-carboxylate
  参考文献：
  名称：

  A Facile Synthesis of Methyl 5-Amino-6-chloro-2H-1-benzopyran-8-carboxylate Derivatives

  摘要：

  Methyl 6-chloro-5-pivaloy lamino-2H-1-benzopyran-8-carboxylate (4d) was prepared in good yield as a result of' the thermal cylcization of methyl 5-chloro-4-pivaloy lamino-2-propargyloxy benzoate (3d) using N.N-diethylaniline as a solvent.

  DOI：

  10.3987/com-98-8294

文献信息

• Investigation of Synthetic Routes to a Key Benzopyran Intermediate of a 5HT₄ Agonist
  作者：Geracimos Rassias、Neil G. Stevenson、Neil R. Curtis、John M. Northall、Matthew Gray、Jeremy C. Prodger、Andrew J. Walker

  DOI：10.1021/op900188v

  日期：2010.1.15

  The supply route to GlaxoSmithKline’s 5HT4 receptor agonist 1 centred on the construction of key benzopyran fragment 2. Our attempts to define the final manufacturing route for this component are described through a series of disconnections. The systematic approach undertaken towards the construction of the benzopyran skeleton focused on cyclisation strategies from appropriate precursors and evaluation

  葛兰素史克（GlaxoSmithKline）的5HT 4受体激动剂1的供应途径以关键的苯并吡喃片段2的构建为中心。我们通过一系列断开连接来描述为该组件定义最终制造路线的尝试。构造苯并吡喃骨架的系统方法集中在适当前体的环化策略和关键步骤性能的评估上。
• A facile gold(I)-catalysed intramolecular alkyne hydroarylation approach to methyl 5-amino-2H-1-benzopyran-8-carboxylate derivatives
  作者：Neil R. Curtis、Jeremy C. Prodger、Geracimos Rassias、Andrew J. Walker

  DOI：10.1016/j.tetlet.2008.08.022

  日期：2008.10

  A high yielding and selective method for producing methyl 5-amino-2H-1-benzopyran-8-carboxylate derivatives via gold(I)-catalysed intramolecular alkyne hydroarylation has been developed.

  已经开发了通过金（I）催化的分子内炔烃加氢芳基化反应制备5-氨基-2 H -1-苯并吡喃-8-羧酸甲酯衍生物的高产率和选择性方法。
• A Facile Synthesis of Methyl 5-Amino-6-chloro-2H-1-benzopyran-8-carboxylate Derivatives
  作者：Takuji Kakigami、Kunihisa Baba、Toshinao Usui

  DOI：10.3987/com-98-8294

  日期：——

  Methyl 6-chloro-5-pivaloy lamino-2H-1-benzopyran-8-carboxylate (4d) was prepared in good yield as a result of' the thermal cylcization of methyl 5-chloro-4-pivaloy lamino-2-propargyloxy benzoate (3d) using N.N-diethylaniline as a solvent.
• Synthesis and Structure-Activity Relationship of 3-Substituted Benzamide, Benzo(b)furan-7-carboxamide, 2,3-Dihydrobenzo(b)furan-7-carboxamide, and Indole-5-carboxamide Derivatives as Selective Serotonin 5-HT4 Receptor Agonits.
  作者：Takuji KAKIGAMI、Toshinao USUI、Katsura TSUKAMOTO、Tadashi KATAOKA

  DOI：10.1248/cpb.46.42

  日期：——

  The title compounds (6-9) were prepared and evaluated for serotonin 5-HT4 agonistic activity in in vitro tests. Introducing a propyl or allyl group at the 3-position of benzamide caused only a slight enhancement of agonistic activity. Construction of the benzo[b]furan skeleton and 2, 3-dihydrobenzo[b]furan skeleton caused a significant enhancement of the activity. 4-Amino-N-[2-(1-azabicyclo[3.3.0]octan-5-yl)ethyl]-5-chloro-2-methylbenzo[b]furan-7-carboxamide (7b) hemifumarate was as potent as cisapride. 4-Amino-N-[2-(1-azabicyclo[3.3.0]octan-5-yl)ethyl]-5-chloro-2, 3-dihydro-2-methylbenzo[b]furan-7-carboxamide (8a) hemifumarate, 4-amino-N-[2-(1-azabicyclo-[3.3.0]octan-5-yl)ethyl]-5-chloro-2, 3-dihydro-2-ethylbenzo[b]furan-7-carboxamide (8c) hemifumarate, and 4-amino-N-[2-(1-azabicyclo[3.3.0]octan-5-yl)ethyl]-5-chloro-2, 3-dihydro-2, 3-dimethylbenzo[b]furan-7-carboxamide (8d) hemifumarate were potent than cisapride. Furthermore, 8a hemifumarate was free from dopamine D1, D2, serotonin 5-HT1, 5-HT2 and muscarine M1, M2 receptor binding activity in the in vitro tests. On the other hand, construction of the indole skeleton caused a remarkable decrease in activity.

  标题化合物（6-9）已被合成并在体外测试中评估其对血清素5-HT4的激动活性。在苯酰胺的3位引入丙基或烯丙基仅导致激动活性的轻微增强。而构建苯并[b]呱骨架和2,3-二氢苯并[b]呱骨架则显著增强了活性。4-氨基-N-[2-(1-叠氮环[3.3.0]八烷-5-基)乙基]-5-氯-2-甲基苯并[b]呱-7-羧酰胺（7b）半富马酸盐的效力与西沙必利相当。4-氨基-N-[2-(1-叠氮环[3.3.0]八烷-5-基)乙基]-5-氯-2,3-二氢-2-甲基苯并[b]呱-7-羧酰胺（8a）半富马酸盐，4-氨基-N-[2-(1-叠氮环[3.3.0]八烷-5-基)乙基]-5-氯-2,3-二氢-2-乙基苯并[b]呱-7-羧酰胺（8c）半富马酸盐，以及4-氨基-N-[2-(1-叠氮环[3.3.0]八烷-5-基)乙基]-5-氯-2,3-二氢-2,3-二甲基苯并[b]呱-7-羧酰胺（8d）半富马酸盐的效力均优于西沙必利。此外，8a半富马酸盐在体外测试中未表现出对多巴胺D1、D2、血清素5-HT1、5-HT2及毒蕈碱M1、M2受体的结合活性。另一方面，构建吲哚骨架则导致活性显著降低。