尼莫地平杂质3 | 40100-28-5

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: 尼莫地平杂质3
• 英文名称: isopropyl 3-aminocrotonate
• 英文别名: isopropyl (Z)-3-aminobut-2-enoate；β-aminocrotonic acid isopropyl ester；propan-2-yl (Z)-3-aminobut-2-enoate
• CAS: 40100-28-5
• 化学式: C₇H₁₃NO₂
• 分子量: 143.186
• InChiKey: YCKAGGHNUHZKCL-XQRVVYSFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  10
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  52.3
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  尼莫地平杂质3 在 甲胺 作用下， 以 乙醇 为溶剂， 生成 3,5-吡啶二羧酸,2-[(2-氨基乙氧基)甲基]-4-(2,3-二氯苯基)-1,4-二氢-6-甲基-,3-乙基5-(1-甲基乙基)酯
  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：

  乙酰乙酸异丙酯 在 氨 作用下， 以 二氯甲烷 为溶剂， 以95%的产率得到尼莫地平杂质3
  参考文献：
  名称：

  Asymmetric N-(3,3-diphenylpropyl)aminoalkyl esters of 4-aryl-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylic acids with antihypertensive activity

  摘要：

  A series of asymmetric 4-aryl-1,4-dihydropyridine-3,5-dicarboxylates characterized by the presence of a 3,3-diphenyl-propylamino moiety in one of the ester groups were synthesized. They exhibited remarkable antihypertensive activity in spontaneously hypertensive rats as well as affinity for the 1,4-dihydropyridines binding site labelled by H-3-nitrendipine in the calcium channel. Introduction of this bulky and lipophilic amine confers to the whole series an elevated level of antihypertensive activity and a long duration of action, a structure-dependent modulation of the activity being found only in the subset characterized by the presence of a branched propylene bridge between the ester and the amino groups. The presence of the amino group is essential for oral activity. Out of this series, compound 9u (Rec 15/2375-lercanidipine) was selected for clinical development and obtained marketing authorization as an antihypertensive in several countries. (C) Elsevier, Paris.

  DOI：

  10.1016/s0223-5234(98)80015-9

文献信息

• Synthesis and Evaluation of a New Class of Nifedipine Analogs with T-Type Calcium Channel Blocking Activity
  作者：P. Phani Kumar、Stephanie C. Stotz、R. Paramashivappa、Aaron M. Beedle、Gerald W. Zamponi、A. Srinivasa Rao

  DOI：10.1124/mol.61.3.649

  日期：2002.3.1

  We have synthesized a novel series of 18 dialkyl 1,4-dihydro-4-(2′alkoxy-6′-pentadecylphenyl)-2,6-dimethyl-3,5 pyridine dicarboxylates from anacardic acid, a natural compound found in cashew nut shells, and investigated their blocking action on L- and T-type calcium channels transiently expressed in tSA-201 cells. The IC50 values for L-type calcium channel block obtained with the series ranged from 1 to ∼40 μM, with higher affinities being favored by increasing the size of the alkoxy group on the 4-phenyl ring and ester substituent in the 3,5 positions. A detailed analysis of the strongest L-type channel blocker of the series (PPK-12) revealed that block was poorly reversible and mediated an apparent speeding of the time course of inactivation. Moreover, in the presence of PPK-12, the midpoint of the steady state inactivation curve was shifted by 20 mV toward more hyperpolarized potentials, resulting in an increase in blocking efficacy at more depolarized holding potentials. Surprisingly, PPK-12 blocked T- and L-type calcium channels with similar affinities. One of the weakest L-type channel inhibitors (PPK-5) exhibited a T-type channel affinity that was similar to that seen with PPK-12, resulting in a 40-fold selectivity of PPK-5 for T- over L-type channels. Thus, dialkyl 1,4-dihydro-4-(2′alkoxy-6′-pentadecylphenyl)-2,6-dimethyl-3,5 pyridine dicarboxylates may serve as excellent candidates for the development of T-type calcium-channel specific blockers.

  我们通过腰果壳中天然化合物腰果酸（anacardic acid）合成了一系列新型化合物，共18种二烷基1,4-二氢-4-(2'-烷氧基-6'-十五烷基苯基)-2,6-二甲基-3,5吡啶二羧酸酯，并研究了它们对瞬时表达在tSA-201细胞上的L型和T型钙通道的阻断作用。该系列化合物的L型钙通道阻断半最大效应浓度（IC50）值范围为1至约40微摩尔，其中增加4-苯环上的烷氧基团和3,5位上的酯取代基可提高亲和力。对系列中最强L型通道阻断剂（PPK-12）的详细分析表明，阻断作用难以逆转，并明显加速了失活过程。此外，在存在PPK-12的情况下，稳态失活曲线的半数失活电压向更超极化的电位偏移20毫伏，导致在更去极化的静息电位下阻断效能增加。令人惊讶的是，PPK-12对T型和L型钙通道的阻断具有相似的亲和力。最弱的L型通道抑制剂之一（PPK-5）对T型通道的亲和力与PPK-12相似，使得PPK-5对T型通道相对于L型通道具有40倍的特异性。因此，二烷基1,4-二氢-4-(2'-烷氧基-6'-十五烷基苯基)-2,6-二甲基-3,5吡啶二羧酸酯可能是作为T型钙通道特异性阻断剂开发的优秀候选物。
• Late-Stage C–H Alkylation of Heterocycles and 1,4-Quinones via Oxidative Homolysis of 1,4-Dihydropyridines
  作者：Álvaro Gutiérrez-Bonet、Camille Remeur、Jennifer K. Matsui、Gary A. Molander

  DOI：10.1021/jacs.7b05899

  日期：2017.9.6

  heterocyclic bases and 1,4-quinones. DHPs are readily prepared from aldehydes, and considering that aldehydes normally require harsh reaction conditions to take part in such transformations, with mixtures of alkylated and acylated products often being obtained, this net decarbonylative alkylation approach becomes particularly useful. The present method takes place under mild reaction conditions and requires

  在氧化条件下，1,4-二氢吡啶 (DHP) 发生均裂，仅形成以 Csp3 为中心的自由基，该自由基可以参与杂环碱基和 1,4-醌的 CH 烷基化。DHP很容易由醛制备，并且考虑到醛通常需要苛刻的反应条件来参与这种转化，并且经常获得烷基化和酰化产物的混合物，这种净脱羰烷基化方法变得特别有用。本方法在温和的反应条件下进行，仅需要过硫酸盐作为化学计量氧化剂，使得该方法适合复杂分子的后期CH烷基化。值得注意的是，结构复杂的药剂可以用该方案功能化或制备，例如抗疟药 Atovaquone 和抗疟药 Parvaquone，从而证明其适用性。机理研究揭示了可能通过形成脱芳构中间体的自由基链过程，从而更深入地了解控制这些自由基前体反应性的因素。
• [EN] AN IMPROVED PROCESS FOR THE MANUFACTURE OF ISRADIPINE.<br/>[FR] PROCEDE AMELIORE DE FABRICATION D'ISRADIPINE
  申请人：SHASUN CHEMICALS AND DRUGS LTD

  公开号：WO2005005437A1

  公开（公告）日：2005-01-20

  The present invention relates to an improved method for the manufacture of Isradipine, 4-(4-Benzofurazanyl)-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylic acid methyl 1-methylethyl ester. which, involves reacting 2,1,3-benzoxadiazole-4-carboxaldehyde with methyl acetoacetate in the presence of acetic acid and piperidine in diisopropyl ether. To obtain the product 2-acetyl-3-benzofurazan-4-yl-acrylic acid methyl ester which is then reacted with isopropyl-ß-aminocrotonate in ethanol at 25 to 35°C to obtain the product.

  该发明涉及一种改进的异拉地平（Isradipine）制备方法，包括在异丙醚中，在乙酸和哌啶的存在下，将2,1,3-苯并噻二唑-4-甲醛与乙酰乙酸甲酯反应。从而得到2-乙酰-3-苯并呋噻-4-基丙烯酸甲酯产物，然后将其与乙醇中的异丙基-ß-氨基丙烯酸酯在25至35°C反应以获得产物。
• 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。
• Synthesis and calcium channel antagonist activities of 3-nitrooxyalkyl, 5-alkyl 1,4-dihydro-2,6-dimethyl-4-(1-methyl-5-nitro-2-imidazolyl)-3,5-pyridinedicarboxylates
  作者：Ramin Miri、H Niknahad、Gh Vesal、A Shafiee

  DOI：10.1016/s0014-827x(01)01183-1

  日期：2002.2

  3-dinitrooxy-2-propyl)], 5-methyl (ethyl or propyl) 1,4-dihydro-2,6-dimethyl-4-(1-methyl-5-nitro-2-imidazolyl)-3,5-pyridinedicarboxylates (18-29) were synthesized using modified Hantzsch reaction that involved the condensation of 2-nitrooxyethyl (8), 3-nitrooxypropyl (9), 4-nitrooxybutyl (10) or 1,3-dinitrooxy-2-propyl (13) acetoacetate with methyl (14), ethyl (15) or isopropyl (16) 3-aminocrotonate and 1-methyl-5-n

  外消旋的3-[（2-硝基氧乙基），（3-硝基氧丙基），（4-硝基氧丁基）或（1,3-二硝基氧-2-丙基）]，5-甲基（乙基或丙基）1,4-使用修饰的Hantzsch反应合成了二氢-2,6-二甲基-4-（1-甲基-5-硝基-2-咪唑基）-3,5-吡啶二羧酸酯（18-29），该反应涉及2-硝基氧乙基（8 ），3-硝基氧丙基（9），4-硝基氧丁基（10）或1,3-二硝基氧-2-丙基（13）乙酰乙酸与甲基（14），乙基（15）或异丙基（16）3-氨基巴豆酸酯和1-甲基-5-硝基咪唑-2-甲醛（17）。使用豚鼠回肠纵向平滑肌测定法测定体外钙通道拮抗剂活性。相对于参比硝苯地平（IC50 = 1.07 +/- 0.12 x 10（-11）M），化合物18-29表现出优越的或等效的钙拮抗剂活性（IC50 = 10（11）-10（-13）M范围） ），