2-cyano-3-(3,4-dimethoxy-5-nitrophenyl)-3-hydroxy-N,N-diethyl-prop-2-enamide

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: 2-cyano-3-(3,4-dimethoxy-5-nitrophenyl)-3-hydroxy-N,N-diethyl-prop-2-enamide
• 英文别名: (Z)-2-cyano-3-(3,4-dimethoxy-5-nitrophenyl)-N,N-diethyl-3-hydroxyacrylamide；Z-2-cyano-3-(3,4-dimethoxy-5-nitrophenyl)-N,N-diethyl-3-hydroxyacrylamide；2-Propenamide, 2-cyano-3-(3,4-dimethoxy-5-nitrophenyl)-N,N-diethyl-3-hydroxy-；(Z)-2-cyano-3-(3,4-dimethoxy-5-nitrophenyl)-N,N-diethyl-3-hydroxyprop-2-enamide
• 化学式: C₁₆H₁₉N₃O₆
• 分子量: 349.343
• InChiKey: YZXSSAOGXJRGRO-KAMYIIQDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  25
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  129
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  2-cyano-3-(3,4-dimethoxy-5-nitrophenyl)-3-hydroxy-N,N-diethyl-prop-2-enamide 在 aluminum (III) chloride 、 三乙酰氧基硼氢化钠 作用下， 以 吡啶 为溶剂， 生成 恩他卡朋
  参考文献：
  名称：

  Efficient Approach to Pure Entacapone and Related Compounds

  摘要：

  A new and efficient process through a new intermediate, (2E)-2-cyano-3(3,4-dihydroxy-5-nirtrophenyl)prop-2-enoic acid 15, has been described for preparing substantially pure entacapone 1. This new intermediate 15 was prepared by Knoevenagel condensation of 3,4-dihydroxy-5-nitrobenzaldehyde 2 with 2-cyanoacetic acid 14 and was further condensed with diethylamine to get pure entacapone 1. Some of the important process-related impurities of entacapone (17, 18, 19, and 20) were also prepared easily from this intermediate 15.

  DOI：

  10.1080/00397911.2010.539894
• 作为产物：
  描述：

  3,4-二甲氧基-5-硝基苯甲酸 在 氯化亚砜 、 sodium hydride 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 生成 2-cyano-3-(3,4-dimethoxy-5-nitrophenyl)-3-hydroxy-N,N-diethyl-prop-2-enamide
  参考文献：
  名称：

  Efficient Approach to Pure Entacapone and Related Compounds

  摘要：

  A new and efficient process through a new intermediate, (2E)-2-cyano-3(3,4-dihydroxy-5-nirtrophenyl)prop-2-enoic acid 15, has been described for preparing substantially pure entacapone 1. This new intermediate 15 was prepared by Knoevenagel condensation of 3,4-dihydroxy-5-nitrobenzaldehyde 2 with 2-cyanoacetic acid 14 and was further condensed with diethylamine to get pure entacapone 1. Some of the important process-related impurities of entacapone (17, 18, 19, and 20) were also prepared easily from this intermediate 15.

  DOI：

  10.1080/00397911.2010.539894

文献信息

• Process for the preparation of entacapone and intermediates thereof
  申请人：ESTEVE QUIMICA, S.A.

  公开号：EP1978014A1

  公开（公告）日：2008-10-08

  New preparation process for the preparation of entacapone which comprises converting the 3,4-dimethoxy-5-nitrobenzoic acid into an activated derivative which is reacted with 2-cyano-N,N-diethylacetamide in the presence of a base to give 2-cyano-3-(3,4-dimethoxy-5-nitrophenyl)-N,N-diethyl-3-hydroxyacrylamide; reacting the resulting compound with MHB(OCOR)3 where R is (C1-C4)-alkyl, phenyl, or CF3; and M is a sodium, potassium or ((C1-C4)-alkyl)4N, in the presence of an appropriate solvent to give E-2-cyano-3-3,4-dimethoxy-5-nitrophenyl)-N,N-diethylacrylamide; and finally submitting the compound obtained to a demethylation reaction to yield entacapone. Both 2-cyano-3-(3,4-dimethoxy-5-nitrophenyl)-N,N-diethyl-3-hydroxyacrylamide and E-2-cyano-3-3,4-dimethoxy-5-nitrophenyl)-N,N-diethylacrylamide are new. Entacapone has industrial applicability as antiparkinson's agent.

  新的恩他卡朋制备工艺包括将3,4-二甲氧基-5-硝基苯甲酸转化为活化衍生物，与2-氰基-N,N-二乙基乙酰胺在碱存在下反应，得到2-氰基-3-(3,4-二甲氧基-5-硝基苯基)-N,N-二乙基-3-羟基丙烯酰胺；将所得化合物与MHB(OCOR)3反应，其中R为(C1-C4)-烷基、苯基或CF3；M为钠、钾或((C1-C4)-烷基)4N，在适当溶剂存在下，得到E-2-氰基-3-(3,4-二甲氧基-5-硝基苯基)-N,N-二乙基丙烯酰胺；最后将所得化合物进行去甲基化反应，得到恩他卡朋。2-氰基-3-(3,4-二甲氧基-5-硝基苯基)-N,N-二乙基-3-羟基丙烯酰胺和E-2-氰基-3-(3,4-二甲氧基-5-硝基苯基)-N,N-二乙基丙烯酰胺均为新化合物。恩他卡朋作为抗帕金森病药物具有工业适用性。
• FTO inhibitors
  申请人：National Institute of Biological Sciences, Beijing

  公开号：US10988440B2

  公开（公告）日：2021-04-27

  The invention provides compounds that inhibit FTO (fat mass and obesity), including pharmaceutically acceptable salts, hydrides and stereoisomers thereof. The compounds are employed in pharmaceutical compositions, and methods of making and use, including treating a person in need thereof, particularly obesity, with an effective amount of the compound or composition, and detecting a resultant improvement in the person's health or condition.

  本发明提供了抑制 FTO（脂肪量和肥胖）的化合物，包括其药学上可接受的盐、氢化物和立体异构体。这些化合物用于药物组合物中，其制造和使用方法包括用有效量的化合物或组合物治疗有需要的人，特别是肥胖症患者，并检测患者健康或病情的改善情况。
• WO2008119793A1
  申请人：——

  公开号：——

  公开（公告）日：——
• FTO Inhibitors
  申请人：National Institute of Biological Sciences, Beijing

  公开号：US20180118665A1

  公开（公告）日：2018-05-03

  The invention provides compounds that inhibit FTO (fat mass and obesity), including pharmaceutically acceptable salts, hydrides and stereoisomers thereof. The compounds are employed in pharmaceutical compositions, and methods of making and use, including treating a person in need thereof, particularly obesity, with an effective amount of the compound or composition, and detecting a resultant improvement in the person's health or condition.
• Efficient Approach to Pure Entacapone and Related Compounds
  作者：G. Srikanth、Uttam Kumar Ray、D. V. N. Srinivas Rao、P. Badarinadh Gupta、P. Lavanya、Aminul Islam

  DOI：10.1080/00397911.2010.539894

  日期：2012.5.1

  A new and efficient process through a new intermediate, (2E)-2-cyano-3(3,4-dihydroxy-5-nirtrophenyl)prop-2-enoic acid 15, has been described for preparing substantially pure entacapone 1. This new intermediate 15 was prepared by Knoevenagel condensation of 3,4-dihydroxy-5-nitrobenzaldehyde 2 with 2-cyanoacetic acid 14 and was further condensed with diethylamine to get pure entacapone 1. Some of the important process-related impurities of entacapone (17, 18, 19, and 20) were also prepared easily from this intermediate 15.