2-(N-benzyl-N-methylamino)-ethyl 3-aminocrotonate | 54527-73-0

• 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: 2-(N-benzyl-N-methylamino)-ethyl 3-aminocrotonate
• 英文别名: N-benzyl-N-methylaminoethyl 3-aminocrotonate；β-aminocrotonic acid N-benzyl-N-methylaminoethyl ester；β-(N-benzyl-N-methylamino)-ethyl-3-aminocrotonate；2-(N-benzyl-N-methylamino)ethyl 3-aminocrotonate；2-(N-benzyl-N-methylamino)ethyl 3-amino-2-butenoate；2-[benzyl(methyl)amino]ethyl (Z)-3-aminobut-2-enoate
• CAS: 54527-73-0
• 化学式: C₁₄H₂₀N₂O₂
• 分子量: 248.325
• InChiKey: UECDKJVOYBYWQP-BENRWUELSA-N

物化性质

• 熔点：
  59-61 °C
• 沸点：
  382.5±27.0 °C(Predicted)
• 密度：
  1.083±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  18
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  55.6
• 氢给体数：
  1
• 氢受体数：
  4

安全信息

• 危险品标志：
  Xi,N
• 安全说明：
  S24,S37,S61
• 危险类别码：
  R51/53,R43
• 海关编码：
  2924299090

反应信息

• 作为反应物：
  描述：

  2-(N-benzyl-N-methylamino)-ethyl 3-aminocrotonate 在 甲胺 作用下， 以 乙醇 为溶剂， 生成 2-(2-Amino-ethoxymethyl)-4-(2,3-dichloro-phenyl)-6-methyl-1,4-dihydro-pyridine-3,5-dicarboxylic acid 5-[2-(benzyl-methyl-amino)-ethyl] ester 3-ethyl ester
  参考文献：
  名称：

  Long-acting dihydropyridine calcium antagonists. 9. Structure activity relationships around amlodipine

  摘要：

  The preparation of a range of 1,4-dihydropyridine analogues of amlodipine has been undertaken and their calcium antagonist activities on rat aorta have been evaluated. Increasing the size of the C5 ester group dramatically reduces calcium antagonist activity, a trend which would be compatible with the carbonyl group of that ester binding to the DHP receptor. Amlodipine analogues with extended C3 ester substituents also have lower potency than amlodipine, possibly because of disruption of a favourable interaction between the protonated amino group on the 2-substituent and the DHP receptor. Replacement of the 6-methyl substituent in amlodipine by alkoxyalkyl groups or electron-withdrawing groups is also detrimental to calcium antagonist activity.

  DOI：

  10.1016/0223-5234(91)90132-7
• 作为产物：
  描述：

  2-(苄基甲基氨基)乙基乙酰乙酸酯 在 氨 作用下， 以 乙醇 为溶剂， 生成 2-(N-benzyl-N-methylamino)-ethyl 3-aminocrotonate
  参考文献：
  名称：

  Long-acting dihydropyridine calcium antagonists. 9. Structure activity relationships around amlodipine

  摘要：

  The preparation of a range of 1,4-dihydropyridine analogues of amlodipine has been undertaken and their calcium antagonist activities on rat aorta have been evaluated. Increasing the size of the C5 ester group dramatically reduces calcium antagonist activity, a trend which would be compatible with the carbonyl group of that ester binding to the DHP receptor. Amlodipine analogues with extended C3 ester substituents also have lower potency than amlodipine, possibly because of disruption of a favourable interaction between the protonated amino group on the 2-substituent and the DHP receptor. Replacement of the 6-methyl substituent in amlodipine by alkoxyalkyl groups or electron-withdrawing groups is also detrimental to calcium antagonist activity.

  DOI：

  10.1016/0223-5234(91)90132-7

文献信息

• Synthesis and Antihypertensive Activities of New 1,4-Dihydropyridine Derivatives Containing a Nitrooxy Moiety at the 3-Ester Position.
  作者：Toshihisa OGAWA、Atsuro NAKAZATO、Katsuharu TSUCHIDA、Katsuo HATAYAMA

  DOI：10.1248/cpb.41.108

  日期：——

  The synthesis of a new series of dihydropyridines containing a nitrooxy mojety at the 3-ester position is described.The antihypertensive activity of the compounds was examined and compared with that of nifedipine; some of them were relatively potent. The structure-activity relationship is also discussed.

  研究合成了一系列在3-酯位含有硝氧基的二氢吡啶类新化合物。这些化合物的降压活性经检验并与尼非地平相比较；其中一些相对具有较强的活性。同时还讨论了结构与活性之间的关系。
• 1,4-Dihydropyridine derivatives
  申请人：Korea Research Institute of Chemical Technology

  公开号：EP0324626A1

  公开（公告）日：1989-07-19

  1,4-dihydropyridine derivatives represented by the formula: wherein R¹ and R², different from the other, is selected from the group consisting of lower alkyl, lower alkenyl, lower alkoxyalkyl or aminoaryl(lower)alkyl having carbon atoms of 1 to 6, which may be substituted or unsubstituted by a lower alkyl having carbon atoms of 1 to 4, wherein at least one of R¹ and R² is a lower alkenyl having carbon atoms of 3 to 6 whose 1- or 2- position is substituted by a lower alkyl having carbon atoms of 1 to 4; and R³ is a nitro group in ortho-, meta- or para-position of the phenyl. The compounds are useful as vasodilators and in the treatment of hypertension.

  1,4-二氢吡啶衍生物的化学式表示为：其中R¹和R²，不同于另一个，选自由1至6个碳原子的较低烷基、较低烯基、较低烷氧基烷基或氨基芳基(较低)烷基组成的基团，该基团可能被1至4个碳原子的较低烷基取代或未取代，其中R¹和R²中至少一个是碳原子为3至6的较低烯基，其1-或2-位置被1至4个碳原子的较低烷基取代；以及R³是苯环的邻位、间位或对位的硝基基团。这些化合物可用作扩血管剂，并用于治疗高血压。
• 1,4-Dihydropyridine-3-carboxylate derivatives
  申请人：Nippon Shinyaku Company, Limited

  公开号：US05036059A1

  公开（公告）日：1991-07-30

  1,4-Dihydropyridine-3-carboxylate derivatives are produced having vasodilating and hypotensive action.

  1,4-二氢吡啶-3-羧酸衍生物具有扩血管和降压作用。
• Certain aralkylaminoalkyl esters of 1,4 dihydropyridines as
  申请人：Teijin Limited

  公开号：US04578395A1

  公开（公告）日：1986-03-25

  A 1,4-dihydropyridine derivative of the formula ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and each represents a hydrogen atom, a halogen atom or a nitro group, provided that R.sup.1 and R.sup.2 are not hydrogen atoms at the same time; R.sup.3 represents an alkyl group; R.sup.4 represents an aralkyl group which may be substituted; R.sup.5 and R.sup.7 are indentical or different and each represents an alkyl group; R.sup.6 represents a hydrogen atom or an alkyl group; R.sup.8 represents an alkyl group; R.sup.9 represents a hydrogen atom or an alkyl group; n and m are identical or different and each represents an integer of 0 to 6; provided that when either one of R.sup.1 and R.sup.2 is a hydrogen atom, R.sup.9 is an alkyl group; or an acid addition salt thereof. The 1,4-dihydropyridine derivative is characterized by a strong antihypertensive activity and the long duration of the activity.

  一种1,4-二氢吡啶衍生物的化学式为##STR1##其中R.sup.1和R.sup.2相同或不同，分别代表氢原子、卤素原子或硝基基团，但R.sup.1和R.sup.2不能同时为氢原子；R.sup.3代表烷基基团；R.sup.4代表可能被取代的芳基烷基基团；R.sup.5和R.sup.7相同或不同，分别代表烷基基团；R.sup.6代表氢原子或烷基基团；R.sup.8代表烷基基团；R.sup.9代表氢原子或烷基基团；n和m相同或不同，分别代表0至6的整数；但当R.sup.1和R.sup.2中的任何一个是氢原子时，R.sup.9为烷基基团；或其酸盐。这种1,4-二氢吡啶衍生物具有强烈的降压活性和持续时间长的特点。
• Processes of manufacturing substituted-1,4-dihydropyridines, improved aqueous solutions thereof, and processes of manufacturing the solutions
  申请人：Jobdevairakkam Christopher N.

  公开号：US20080125595A1

  公开（公告）日：2008-05-29

  A process of preparing a stable parenteral solution of a 1,4-dihydropyridine salt, such as nicardipine hydrochloride, in an acidic aqueous medium. The presence of L-arginine in the solution enhances the solubility of the salt, which is poorly soluble in water. An aqueous, injectable isotonic solution at pH about 3.5-3.6 consists essentially of nicardipine hydrochloride, L-arginine, and a sugar alcohol. An improved single pot manufacturing process for obtaining unsymmetrical 1,4-dihydropyridines by using more than one mole equivalent of aldehyde with respect to the other reactants (amino crotonate and acetoacetate ester). The reaction can be conducted in a solvent present at 20 times the amount of any one component. A process for changing one polymorph of nicardipine hydrochloride (Form A) into another (Form B), and a separate process for the reverse (Form B into Form A).

  一种制备1,4-二氢吡啶盐（如盐酸尼卡地平）的稳定无菌溶液的工艺，该工艺在酸性水介质中进行。溶液中存在L-精氨酸，可增强盐的溶解度，而盐在水中溶解度较差。该无菌溶液为水溶性、注射用的等渗溶液，pH值约为3.5-3.6，主要由盐酸尼卡地平、L-精氨酸和糖醇组成。 一种改进的单锅制造工艺，用于通过使用超过其他反应物（氨基丙烯酸酯和乙酰乙酸酯）的摩尔当量的醛类来获得非对称的1,4-二氢吡啶。该反应可以在溶剂中进行，溶剂的量为任何一个组分的20倍。 一种将尼卡地平盐酸的一种多晶形式（A型）转变为另一种多晶形式（B型）的工艺，以及将B型转变为A型的单独工艺。