1,6-dimethyl-4-(3-nitro-phenyl)-2-oxo-1,2,3,4-tetrahydro-pyrimidine-5-carboxylic acid ethyl ester | 219814-84-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 1,6-dimethyl-4-(3-nitro-phenyl)-2-oxo-1,2,3,4-tetrahydro-pyrimidine-5-carboxylic acid ethyl ester
• 英文别名: Ethyl 1,6-dimethyl-4-(3-nitrophenyl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate；5-ethoxycarbonyl-1,6-dimethyl-4-(3-nitrophenyl)-3,4-dihydropyrimidin-2(1H)-one；ethyl 3,4-dimethyl-6-(3-nitrophenyl)-2-oxo-1,6-dihydropyrimidine-5-carboxylate
• CAS: 219814-84-3
• 化学式: C₁₅H₁₇N₃O₅
• 分子量: 319.317
• InChiKey: AJTGDBABXFZHMV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  23
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  105
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  1,6-dimethyl-4-(3-nitro-phenyl)-2-oxo-1,2,3,4-tetrahydro-pyrimidine-5-carboxylic acid ethyl ester 在 溴 、 sodium hydride 、 potassium hydroxide 作用下， 以 水 、 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 0.17h， 生成 1-methyl-4-(3-nitrophenyl)-7,9-diphenyl-4,6-dihydropyrido[3",2":4',5']thieno[2',3':5,6]pyrido[4,3-d]pyrimidine-2,5(1H,3H)-dione
  参考文献：
  名称：

  3-氰基吡啶-2（1 H）-硫酮与Biginelli 6-溴甲基-3,4-二氢嘧啶-2（1 H）-一个的索普-齐格勒型反应：四环和五环杂环骨架的级联组装

  摘要：

  已经显示3-氰基吡啶-2（1 H）-硫酮在加热时与Biginelli型4-芳基-6-（溴甲基）-2-氧-1,2,3,4-四氢嘧啶-5-羧酸乙酯反应在DMF中，生成4-芳基-6-{[（（3-氰基吡啶-2-基）硫基]甲基] -2-氧代-1,2,3,4-四氢嘧啶-5-羧酸乙酯。后者在沸腾的DMF中用过量的NaH或t- BuOK处理后，进行串联的Thorpe–Ziegler型杂环化反应，得到吡啶并[3″，2″：4'，5'] thieno [2'，3'：5 ，6]吡啶[4,3- d ]嘧啶衍生物，收率高。测试所选化合物的抗菌和抗真菌活性。

  DOI：

  10.1016/j.tet.2012.09.041
• 作为产物：
  描述：

  nifetepimine 、 碘甲烷 在 caesium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 18.0h， 以90%的产率得到1,6-dimethyl-4-(3-nitro-phenyl)-2-oxo-1,2,3,4-tetrahydro-pyrimidine-5-carboxylic acid ethyl ester
  参考文献：
  名称：

  Regioselective N1-alkylation of 3,4-dihydropyrimidine-2(1H)-ones: Screening of their biological activities against Ca2+-ATPase

  摘要：

  A regioselective N1-alkylation of 3,4-dihydropyrimidin-2(1H)-ones using a very efficient mild base Cs2CO3 and alkyl halides at room temperature has been reported. The selectivity of this methodology is excellent and the yields of the alkylated products are very good. Furthermore inhibitory action of both the 3,4-dihydropyrimidin-2(1H)-ones and the N1-alkylated derivatives were tested on Ca2+-ATPase, which revealed that the parent compounds can act as Ca2+-ATPase inhibitors whereas the N1-alkylated derivatives are inefficient for this purpose. (C) 2012 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2012.04.043

文献信息

• Selective N1-Alkylation of 3,4-Dihydropyrimidin-2(1<i>H</i>)-ones Using Mitsunobu-Type Conditions
  作者：C. Oliver Kappe、Doris Dallinger

  DOI：10.1055/s-2002-34881

  日期：——

  The regioselective N1-alkylation of 3,4-dihydropyrimidin-2(1H)-ones via Mitsunobu reaction is reported. Using the highly reactive Mitsunobu coupling reagent combination N,N,N′,N′-tetramethylazodicarboxamide/tributylphosphine (TMAD-TBP) and a set of primary alcohols a small library of N1-alkylated dihydropyrimidones is obtained in good to excellent yields.

  报道了通过 Mitsunobu 反应实现 3,4-二氢嘧啶-2(1H)-酮的 N1-烷基选择性烷基化。使用高活性的 Mitsunobu 偶联试剂组合 N,N,N',N'-四甲基偶氮二羧酰胺/三丁基膦（TMAD-TBP）以及一系列伯醇，获得了产率良好至优异的一系列 N1-烷基化二氢嘧啶酮的小型化合物库。
• Synthesis and reactions of Biginelli-compounds. Part 23. Chemoenzymatic syntheses of enanttiomerically pure 4-aryl-3,4-dihydropyrimidin-2(1H)-ones
  作者：Barbara Schnell、Wolfram Krenn、Kurt Faber、C. Oliver Kappe

  DOI：10.1039/b006372j

  日期：——

  Enantiomerically pure dihydropyrimidones (DHPMs) were prepared by lipase-catalyzed enzymatic resolution of two types of activated DHPM esters. In the first model series, pivaloyloxymethyl-activated DHPM C5-esters 10a–c were resolved on an analytical scale by various lipases in two different solvent systems with selectivities E < 50. Alternatively, attachment of an acetoxymethyl residue at the N3 position of the DHPM scaffold led to activated ester 15, which was selectively cleaved by Thermomyces lanuginosus lipase (E > 200) to furnish, after deprotection, DHPMs (R)- and (S)-13 on a semi-preparative scale. Treatment of (R)-13 with trichloroacetyl isocyanate produced the antihypertensive agent (R)-SQ 32926.

  通过脂肪酶催化的酶法拆分两种活化的二氢嘧啶酮酯，制备了对映体纯的二氢嘧啶酮（DHPM）。在第一个模型系列中，通过对不同脂肪酶在两种不同溶剂体系中的分析规模拆分，得到了选择性E < 50的茚满甲酰氧甲基活化的DHPM C5酯10a-c。或者，将乙酰氧甲基残基连接到DHPM骨架的N3位置，产生了活化的酯15，该酯被Thermomyces lanuginosus脂肪酶选择性裂解（E > 200），经脱保护后在中等制备规模上得到DHPM（R）-和（S）-13。处理（R）-13与三氯乙酰异氰酸酯，得到了降压剂（R）-SQ 32926。
• N-Substituted Ureas and Thioureas in Biginelli Reaction Promoted by Chlorotrimethylsilane: Convenient Synthesis of <i>N</i>1-Alkyl-, <i>N</i>1-Aryl-, and <i>N</i>1,<i>N</i>3-Dialkyl-3,4-Dihydropyrimidin-2(1<i>H</i>)-(thi)ones
  作者：Dmitriy Volochnyuk、Sergey Ryabukhin、Andrey Plaskon、Eugeniy Ostapchuk、Andrey Tolmachev

  DOI：10.1055/s-2007-965881

  日期：2007.2

  The classical Biginelli reaction has been extended by the use of N-substituted ureas and thioureas. A set of N1-alkyl-, N1-aryl-, and N1,N3-dialkyl-3,4-dihydropyrimidin-2(1H)-(thi)ones was readily prepared in excellent yield when chlorotrimethylsilane in N,N-dimethylformamide was used as promoter and water scavenger.

  经典的Biginelli反应已经通过使用N取代的尿素和硫尿素得到了扩展。当在N,N-二甲基甲酰胺中使用氯三甲基硅烷作为促进剂和脱水剂时，能够容易地以优异的产率合成一系列N1-烷基、N1-芳基和N1,N3-双烷基-3,4-二氢嘧啶-2(1H)-(硫)酮。
• Cerous <i>p</i>-Toluenesulfonate as an Efficient and Recyclable Catalyst for the Synthesis of <i>N</i>1-Substituted-4-aryl-3,4-dihydropyrimidin-2(1<i>H</i>)-ones
  作者：Min Wang、Hongxu Jiang、Shun Zhang、He Pan

  DOI：10.1080/00304948.2018.1525672

  日期：2018.9.3

  agents and a1aantagonists. Since the first straightforward synthetic method for DHPMs was reported by Biginelli in 1893, many improved protocols were developed. Not only new catalysts and reaction conditions were explored but also some novel reactive species were formed. The scope of the Biginelli reaction extended to various building blocks, so a large number of multifunctional pyrimidine derivatives with

  由于杂环上的六个功能点，二氢嘧啶酮 (DHPM) 具有广泛的合成重要性。DHPMs 还具有多种生物和药物活性，如钙通道阻滞剂、抗高血压剂和 a1a 拮抗剂。自从 1893 年 Biginelli 报告了第一个直接的 DHPM 合成方法以来，开发了许多改进的协议。不仅探索了新的催化剂和反应条件，而且形成了一些新的反应物种。Biginelli 反应的范围扩展到各种构建模块，因此获得了大量具有重要生物学特性的多功能嘧啶衍生物。其中，N1 取代的 DHPMs 也具有重要的生物活性和区域选择性。然而，关于 DHPM 的 N1-烷基化的参考文献很少，而且它们在产率、有毒试剂和反应条件方面都有局限性。尿素上的取代基主要限于 Me 和 Et。这鼓励我们开发一种新颖有效的方法来合成更多 N1 取代的 DHPM。作为耐水路易斯酸催化剂，金属磺酸盐被认为在合成化学中具有广泛的应用前景。它们高效、无毒并可重复使用。作为我们在金属磺酸盐催化的
• Regioselective dehydrogenation of 3,4-dihydropyrimidin-2(1H)-ones mediated by ceric ammonium nitrate
  作者：P. Shanmugam、P.T. Perumal

  DOI：10.1016/j.tet.2006.07.063

  日期：2006.10

  Ceric ammonium nitrate (CAN) has been explored for the regioselective oxidation of 3,4-dihydropyrimidin-2(1H)-ones (DHPMs). Interestingly, we obtained ethyl 2,4-dioxo-6-phenyl-tetrahydropyrimidin-5-carboxylates as the major products during the oxidation of DHPMs by CAN/AcOH at 80 degrees C. The reaction afforded a mixture of products while employing CAN in organic solvents without additives. However, the regioselective dehydrogenated product, ethyl 6-methyl-4-aryl(alkyl)-pyrimidin-2(1H)-one-5-carboxylate was obtained by performing the reaction with NaHCO3. The single crystal X-ray crystallography of ethyl 6-methyl-4-(2-phenyl)-pyrimidin-2(1H)-one-5-carboxylate revealed that the oxidized product existed in amidic form rather than aromatized enol form of pyrimidines. The efficiency of the present protocol enabled the synthesis of structurally diverse pyrimidines in moderate to good yields under milder reaction conditions. (c) 2006 Elsevier Ltd. All rights reserved.