2-(3-硝基亚苄基)乙酰乙酸异丙酯 | 39562-25-9

• 物质功能分类: 有机原料 - 羧酸类化合物及衍生物
• 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
• 中文名称: 2-(3-硝基亚苄基)乙酰乙酸异丙酯
• 中文别名: 阿折地平中间体Ⅲ；阿折地平中间体III；2-(3-硝基亚苄基)乙酰乙酸异丙脂；3-酮基-2-对硝亚苄基-丁酰苯胺
• 英文名称: isopropyl 2-(3-nitrobenzylidene)acetoacetate
• 英文别名: Butanoic acid, 2-[(3-nitrophenyl)methylene]-3-oxo-, 1-methylethyl ester；propan-2-yl 2-[(3-nitrophenyl)methylidene]-3-oxobutanoate
• CAS: 39562-25-9
• 化学式: C₁₄H₁₅NO₅
• 分子量: 277.277
• InChiKey: KSZOTXZFYCRWQK-UHFFFAOYSA-N

物化性质

• 熔点：
  94 °C
• 沸点：
  404.9±35.0 °C(Predicted)
• 密度：
  1.229±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  20
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  89.2
• 氢给体数：
  0
• 氢受体数：
  5

安全信息

• 海关编码：
  2918300090
• 储存条件：
  室温且干燥环境下使用。

反应信息

• 作为反应物：
  描述：

  2-(3-硝基亚苄基)乙酰乙酸异丙酯 在 sodium acetate 、 sodium hydride 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 5.0h， 生成 3-methyl, 5-isopropyl 4-(3-nitrophenyl)-1,4-dihydro-6-methyl-2-(methylthio)-5-pyrimidinedicarboxylate
  参考文献：
  名称：

  Antagonism of L-type Ca2+ channels CaV1.3 and CaV1.2 by 1,4-dihydropyrimidines and 4H-pyrans as dihydropyridine mimics

  摘要：

  The L-type calcium channel (LTCC) Ca(v)1.3 is regarded as a new potential therapeutic target for Parkinson's disease. Calcium influx through Ca(v)1.3 LTCC during autonomous pacemaking in adult dopaminergic neurons of the substantia nigra pars compacta is related to the generation of mitochondrial oxidative stress in animal models. Development of a Ca(v)1.3 antagonist selective over Ca(v)1.2 is essential because Ca(v)1.2 pore-forming subunits are the predominant form of LTCCs and are abundant in the central nervous and cardiovascular systems. We have explored 1,4-dihydropyrimidines and 4H-pyrans to identify potent and selective antagonists of Ca(v)1.3 relative to Ca(v)1.2 LTCCs. A library of 36 dihydropyridine (DHP)-mimic 1,4-dihydropyrimidines and 4H-pyrans was synthesized, and promising chiral compounds were resolved. The antagonism studies of Ca(v)1.3 and Ca(v)1.2 LTCCs using DHP mimic compounds showed that dihydropyrimidines and 4H-pyrans are effective antagonists of DHPs for Ca(v)1.3 LTCCs. Some 1,4-dihydropyrimidines are more selective than isradipine for Ca(v)1.3 over Ca(v)1.2, shown here by both calcium flux and patch-clamp electrophysiology experiments, where the ratio of antagonism is around 2-3. These results support the hypothesis that the modified hydrogen bonding donor/acceptors in DHP-mimic dihydropyrimidines and 4H-pyrans can interact differently with DHP binding sites, but, in addition, the data suggest that the binding sites of DHP in Ca(v)1.3 and Ca(v)1.2 LTCCs are very similar. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2013.04.054
• 作为产物：
  描述：

  乙酰乙酸异丙酯 、 间硝基苯甲醛 在 硫酸 作用下， 反应 12.5h， 以44.9%的产率得到2-(3-硝基亚苄基)乙酰乙酸异丙酯
  参考文献：
  名称：

  非共价官能化商品聚合物作为立体选择性结晶的定制添加剂

  摘要：

  通过“量身定制”的聚合物添加剂，立体选择性地抑制一种对映体的成核和晶体生长，是获得对映体纯化合物的有效方法。然而，由手性单体制备聚合物添加剂的常规方法费力且结构有限，阻碍了它们的快速优化和适用性。在此，我们报告了一种“即插即用”策略，通过使用市售的非手性聚合物作为平台，通过非共价相互作用连接各种手性小分子作为识别侧链，从而促进合成。由两种乙烯基聚合物和六个小分子组成的超分子聚合物库与种子一起应用于不同溶剂中七种外消旋物的选择性结晶。它们在聚集体和外消旋化合物形成系统中产生具有高对映体纯度的晶体方面显示出良好至极好的立体选择性。这种方便、低成本的聚合物添加剂模块化合成策略将允许高效、经济地分离不同规模的各种外消旋物。

  DOI：

  10.1002/anie.202106603

文献信息

• Novel 2-Amino-1,4-dihydropyridine Calcium Antagonists. I. Synthesis and Antihypertensive Effects of 2-Amino-1,4-dihydropyridine Derivatives Having Nitroxyalkoxycarbonyl Groups at 3- and/or 5-Position.
  作者：Takashi KOBAYASHI、Teruhiko INOUE、Zyunichiro KITA、Haruo YOSHIYA、Shigeyoshi NISHINO、Kiyoshi OIZUMI、Tomio KIMURA

  DOI：10.1248/cpb.43.788

  日期：——

  Novel 2-amino-1,4-dihydropyridine derivatives, which contain nitroxy-alkoxycarbonyl groups at the 3- and/or 5-position, were synthesized and their pharmaceutical effect was evaluated in spontaneously hypertensive rats. The structure-activity relationships are discussed in terms of potency, onset-rapidity, and duration of antihypertensive activity. Remarkably prolonged duration of antihypertensive action

  合成了新型的2-氨基-1,4-二氢吡啶衍生物，该衍生物在3-位和/或5-位含有硝基氧基-烷氧基羰基，并在自发性高血压大鼠中评估了它们的药理作用。从效价，起效迅速和降压活性持续时间方面讨论了构效关系。当在酯链的任一侧引入叔氨基时，观察到抗高血压作用的持续时间显着延长。
• Novel 2-Amino-1,4-dihydropyridine Calcium Antagonists. II. Synthesis and Antihypertensive Effects of 2-Amino-1,4-dihydropyridine Derivatives Having N,N-Dialkylaminoalkoxycarbonyl Groups at 3- and/or 5-Position.
  作者：Takashi KOBAYASHI、Teruhiko INOUE、Shigeyoshi NISHINO、Yoshimi FUJIHARA、Kiyoshi OIZUMI、Tomio KIMURA

  DOI：10.1248/cpb.43.797

  日期：——

  potency than those with acyclic amino moieties. Chemical modification studies indicated that the two ester side-chains of 1,4-dihydropyridine at the 3- and 5-position might function in a different manner in relation to the antihypertensive activities. 3-(1-Benzhydrylazetidinited potent and long-lasting antihypertensive effects with gradual onset of action, and is a promising candidate as an antihypertensive

  合成了在3和/或5位上含有N，N，-二烷基氨基烷氧基羰基的新型2-氨基-1,4-二氢吡啶衍生物I，并在自发性高血压大鼠中评估了其降压作用。当叔氨基被引入1,4-二氢吡啶环的3-和/或5-酯侧链时，观察到抗高血压作用的持续时间显着延长。特别地，在3位含有环氨基的化合物比具有无环氨基的化合物显示出更高的效力。化学修饰研究表明，在3和5位的1,4-二氢吡啶的两个酯侧链可能以与抗高血压活性有关的不同方式起作用。
• Synthesis of asymmetric 4-aryl-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylates with vasodilating and antihypertensive activities.
  作者：SACHIO OHNO、OSAMU KOMATSU、KIYOSHI MIZUKOSHI、KENJI ICHIHARA、YOSHIKI NAKAMURA、TAKASHI MORISHIMA、KAZUHARU SUMITA

  DOI：10.1248/cpb.34.1589

  日期：——

  Asymmetric 4-aryl-1, 4-dihydro-2, 6-dimethyl-3, 5-pyridinedicarboxylates with a 2-ethylenedioxypropyl, 2-oxopropyl, or cyclopropylmethyl group as the ester moiety and related derivatives were synthesized and tested for vasodilating activity in anesthetized open-chest dogs and for antihypertensive activity in conscious spontaneously hypertensive rats. Cyclopropylmethyl methyl 1, 4-dihydro-2, 6-dimethyl-4-(3-nitrophenyl)-3, 5-pyridinedicarboxylate (5f, MPC-2101) and methyl 2-oxopropyl 1, 4-dihydro-2, 6-dimethyl-4-(2-nitrophenyl)-3, 5-pyridinedicarboxylate (8i, MPC-1304) exhibited potent cerebral vasodilating and antihypertensive activities, respectively. The maximum increase of vertebral blood flow after intravenous administration at 3.0 μg/kg was 221.4% for 5f, compared with 187.0 and 166.3% for nifedipine and nicardipine hydrochloride, respectively. The maximum falls of systolic blood pressure after oral administration of 8i at 0.3 and 1.0 mg/kg were 42.2 and 54.0 mmHg, while those of nifedipine, nicardipine, and hydralazine hydrochloride at 3.0 mg/kg were 23.3, 16.8, and 24.5 mmHg, respectively. The durations of significant vasodilating and antihypertensive effects for 5f and 8i were longer than those of nifedipine and nicardipine.

  合成了非对称的4-芳基-1,4-二氢-2,6-二甲基-3,5-吡啶二羧酸酯，其中含有2-乙烯二氧丙基、2-氧丙基或环丙基甲基作为酯基，以及相关衍生物，并进行了在麻醉开放胸腔犬中的扩血管活性及在意识清醒的自发性高血压大鼠中的抗高血压活性测试。环丙基甲基甲基1,4-二氢-2,6-二甲基-4-(3-硝基苯基)-3,5-吡啶二羧酸酯（5f，MPC-2101）和甲基2-氧丙基1,4-二氢-2,6-二甲基-4-(2-硝基苯基)-3,5-吡啶二羧酸酯（8i，MPC-1304）分别表现出强效的脑扩血管和抗高血压活性。在3.0 μg/kg的静脉给药后，5f对脊椎血流的最大增加为221.4%，而硝苯地平和尼卡地平氯化物分别为187.0%和166.3%。8i在0.3和1.0 mg/kg口服给药后的收缩压最大下降分别为42.2和54.0 mmHg，而硝苯地平、尼卡地平和肼苯噻啶氯化物在3.0 mg/kg时的最大下降分别为23.3、16.8和24.5 mmHg。5f和8i的显著扩血管和抗高血压效果持续时间比硝苯地平和尼卡地平更长。
• Studies on Cerebral Protective Agents. I. Novel 4-Arylpyrimidine Derivatives with Anti-anoxic and Anti-lipid Peroxidation Activities.
  作者：Atsushi KUNO、Yoshie SUGIYAMA、Kiyotaka KATSUTA、Toshiharu KAMITANI、Hisashi TAKASUGI

  DOI：10.1248/cpb.40.1452

  日期：——

  Novel 4-arylpyrimidine derivatives were synthesized by the oxidation of 4-aryl-1, 4-dyhydropyrimidines, and their effects on anti-anoxic (AA) activity in mice and anti-lipid peroxidation (ALP) activity in rat mitochondria were investigated. Among these compounds, ethyl 6-methyl-2-phenyl-4-(4-pyridyl)-5-pyrimidinecarboxylate (4b) has AA activity (10mg/kg, i.p.) and ethyl 6-methyl-4-(3-nitrophenyl)-2-phenyl-5-pyrimidinecarboxylate (4f) has ALP activity (73% inhibition at 10<-5>g/ml). The latter compound (100mg/kg, i.p.) was also effective on arachidonate-induced cerebral edema in rats with comparable potency to that of vitamin E.

  通过氧化4-芳基-1,4-二氢嘧啶合成了新型4-芳基嘧啶衍生物，并研究了它们对小鼠抗缺氧（AA）活性和大鼠线粒体抗脂质过氧化（ALP）活性的影响。在这些化合物中，乙基6-甲基-2-苯基-4-(4-吡啶基)-5-嘧啶羧酸酯（4b）具有AA活性（10mg/kg，腹腔注射），而乙基6-甲基-4-(3-硝基苯基)-2-苯基-5-嘧啶羧酸酯（4f）具有ALP活性（73%抑制在10μg/ml）。后者化合物（100mg/kg，腹腔注射）对大鼠花生四烯酸引起的脑水肿也有效，其效力与维生素E相当。
• 一种阿折地平杂质及其制备方法
  申请人：青岛科技大学

  公开号：CN108707106A

  公开（公告）日：2018-10-26

  本发明属于阿折地平杂质制备领域，公开了一种阿折地平杂质及其制备方法。该方法以阿折地平关键中间体为原料，通过有机铵盐和有机铝试剂氨解，得到丙二酰脒盐，再与阿折地平关键中间体发生Hantzsch缩合，定向合成得到纯度高的阿折地平氨解杂质。本发明提供的制备方法反应条件温和、简单易操作，目标产物容易分离、产物收率和纯度较高；制备得到的阿折地平杂质明确后能够准确反应其在原料药中的准确含量，同时该已知杂质可以定向合成杂质对照品，可以以外标法等计算出杂质在原料药中的准确含量，对控制原料药的纯度有积极意义。