2-(4-methoxyphenyl)-4H-pyrido[1,2-a]pyrimidin-4-one | 191218-37-8

• 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: 2-(4-methoxyphenyl)-4H-pyrido[1,2-a]pyrimidin-4-one
• 英文别名: 2-(4-methoxyphenyl)pyrido[1,2-a]pyrimidin-4-one
• CAS: 191218-37-8
• 化学式: C₁₅H₁₂N₂O₂
• 分子量: 252.272
• InChiKey: NLFCUULYXAZPBO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  41.9
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-(4-methoxyphenyl)-4H-pyrido[1,2-a]pyrimidin-4-one 以 paraffin 为溶剂， 反应 2.0h， 生成 2-(4-methoxyphenyl)-1,8-naphthyridin-4(1H)-one
  参考文献：
  名称：

  Antitumor Agents. 174. 2‘,3‘,4‘,5,6,7-Substituted 2-Phenyl-1,8-naphthyridin-4-ones:  Their Synthesis, Cytotoxicity, and Inhibition of Tubulin Polymerization

  摘要：

  Two series of 2',3',4',5,6,7-substituted 8-phenyl-1,8-naphthyridin-4-ones and 2-phenylpyrido-[1,2-a]pyrimidin-4-ones have been synthesized and evaluated as cytotoxic compounds and as inhibitors of tubulin polymerization. Most 2-phenyl-1,8-naphthyridin-4-ones showed potent cytotoxic and antitubulin activities, whereas 2-phenylpyrido[1,2-a]pyrimidin-4-ones showed no activity in either assay. In general, a good correlation was found between cytotoxicity and inhibition of tubulin polymerization in the 2-phenyl-1,8-naphthyridin-4-one series. The 2-phenyl-1,8-naphthyridin-4-ones (44-49) with a methoxy group at the 3'-position showed potent cytotoxicity against most tumor cell lines with GI(50) values in the low micromolar to nanomolar concentration range in the National Cancer Institute's 60 human tumor cell line in vitro screen. Introduction of substituents (e.g. F, Cl, CH3, and OCH3) at the 4'-position led to compounds with reduced or little activity and substitution at the 2'-position resulted in inactive compounds. The effects of various A-ring substitutions on activity depend on the substitution in ring C. Compounds 44-50 were potent inhibitors of tubulin polymerization, with activity nearly comparable to that of the potent antimitotic natural products colchicine, podophyllotoxin, and combretastatin A-4. Compounds 44-49 also inhibited the binding of radiolabeled colchicine to tubulin, but the inhibition was less potent than that obtained with the natural products. Further investigation is underway to determine if substitution at the 3'-position and multisubstitutions in ring C will result in compounds with increased activity.

  DOI：

  10.1021/jm960858s
• 作为产物：
  描述：

  对甲氧基苯乙酮 在 sodium hydride 作用下， 以 甲苯 为溶剂， 反应 0.33h， 生成 2-(4-methoxyphenyl)-4H-pyrido[1,2-a]pyrimidin-4-one
  参考文献：
  名称：

  Antitumor Agents. 174. 2‘,3‘,4‘,5,6,7-Substituted 2-Phenyl-1,8-naphthyridin-4-ones:  Their Synthesis, Cytotoxicity, and Inhibition of Tubulin Polymerization

  摘要：

  Two series of 2',3',4',5,6,7-substituted 8-phenyl-1,8-naphthyridin-4-ones and 2-phenylpyrido-[1,2-a]pyrimidin-4-ones have been synthesized and evaluated as cytotoxic compounds and as inhibitors of tubulin polymerization. Most 2-phenyl-1,8-naphthyridin-4-ones showed potent cytotoxic and antitubulin activities, whereas 2-phenylpyrido[1,2-a]pyrimidin-4-ones showed no activity in either assay. In general, a good correlation was found between cytotoxicity and inhibition of tubulin polymerization in the 2-phenyl-1,8-naphthyridin-4-one series. The 2-phenyl-1,8-naphthyridin-4-ones (44-49) with a methoxy group at the 3'-position showed potent cytotoxicity against most tumor cell lines with GI(50) values in the low micromolar to nanomolar concentration range in the National Cancer Institute's 60 human tumor cell line in vitro screen. Introduction of substituents (e.g. F, Cl, CH3, and OCH3) at the 4'-position led to compounds with reduced or little activity and substitution at the 2'-position resulted in inactive compounds. The effects of various A-ring substitutions on activity depend on the substitution in ring C. Compounds 44-50 were potent inhibitors of tubulin polymerization, with activity nearly comparable to that of the potent antimitotic natural products colchicine, podophyllotoxin, and combretastatin A-4. Compounds 44-49 also inhibited the binding of radiolabeled colchicine to tubulin, but the inhibition was less potent than that obtained with the natural products. Further investigation is underway to determine if substitution at the 3'-position and multisubstitutions in ring C will result in compounds with increased activity.

  DOI：

  10.1021/jm960858s

文献信息

• Manganese‐Catalyzed Carbonylative Annulations for Redox‐Neutral Late‐Stage Diversification
  作者：Yu‐Feng Liang、Ralf Steinbock、Annika Münch、Dietmar Stalke、Lutz Ackermann

  DOI：10.1002/anie.201801111

  日期：2018.5.4

  inexpensive, nontoxic manganese catalyst enabled unprecedented redox‐neutral carbonylative annulations under ambient pressure. The manganese catalyst outperformed all other typically used base and precious‐metal catalysts. The outstanding versatility of the manganese catalysis manifold was reflected by ample substrate scope, setting the stage for effective late‐stage manipulations under racemization‐free

  廉价，无毒的锰催化剂可在环境压力下实现前所未有的氧化还原中性羰基环化反应。锰催化剂的性能优于所有其他常用的碱金属和贵金属催化剂。充足的底物范围反映了锰催化歧管出色的多功能性，为在无消旋条件下对许多市售药物和天然产物（包括生物碱，氨基酸，类固醇和碳水化合物）进行有效的后期操作奠定了基础。
• Pd-catalyzed carbonylative cycloamidation of ketoimines for the synthesis of pyrido[1,2-a]pyrimidin-4-ones
  作者：Ying Xie、Tengfei Chen、Shaomin Fu、Huanfeng Jiang、Wei Zeng

  DOI：10.1039/c5cc02631h

  日期：——

  The Pd(ii)-catalyzed pyridine-directed carbonylative cycloamidation of ketoimines has provided an efficient protocol for assembly of pyrido[1,2-a]pyrimidin-4-ones.

  Pd（II）催化的吡啶导向羰基环化肼酮的羰基化环酰胺化反应为合成吡啶并[1,2-a]嘧啶-4-酮提供了高效的方案。
• Suzuki–Miyaura cross-coupling reactions of halo derivatives of 4H-pyrido[1,2-a]pyrimidin-4-ones
  作者：Annamária Molnár、Anita Kapros、László Párkányi、Zoltán Mucsi、Gábor Vlád、István Hermecz

  DOI：10.1039/c1ob05505d

  日期：——

  cross-coupling reactions of halo derivatives of 4H-pyrido[1,2-a]pyrimidin-4-one with (het)arylboronic acids allow easy access to (het)aryl and vinyl derivatives of this bicycle in good to excellent yields, even from chloro derivatives. The sequence of reactivity of the halogen in the different positions of the ring system was also investigated. 6-Phenyl-4H-pyrido[1,2-a]pyrimidin-4-one could be prepared by thermal

  钯催化的卤素衍生物的Suzuki-Miyaura交叉偶联反应 4 H-吡啶并[1,2- a ]嘧啶-4-一与（杂）芳基硼酸一起使用，即使从氯代衍生物中也可以很容易地获得该自行车的（杂）芳基和乙烯基衍生物。还研究了卤素在环系统不同位置的反应顺序。6-苯基-4 H-吡啶并[1,2- a ]嘧啶-4-一 可以通过热环化制备 异亚丙基（6-苯基吡啶-2-基氨基）亚甲基丙二酸酯，以及少量的7-苯基-1,4-二氢-1,8-萘啶-4-酮。
• New efficient approach for the synthesis of 2-alkyl(aryl) substituted 4<i>H</i>-pyrido[1,2-<i>a</i>]pyrimidin-4-ones
  作者：Helio G. Bonacorso、Fernando J. Righi、Isadora R. Rodrigues、Cleber A. Cechinel、Michelle B. Costa、Arci D. Wastowski、Marcos A. P. Martins、Nilo Zanatta

  DOI：10.1002/jhet.5570430136

  日期：2006.1

  A new, efficient and easy route for the preparation of a series of 2-alkyl(aryl) substituted 4-oxo-4H-pyrido-[1,2-a]pyrimidines, where alkyl = CH3; aryl = C6H5, 4-FC6H4, 4-ClC6H4, 4-BrC6H4, 4-CH3C6H4, 4-OCH3C6H4, 4-NO2C6H4 in 45–80 % yield from the reaction of β-alkoxyvinyl trichloromethyl ketones with 2-aminopyridine under mild conditions, is then reported.

  一系列2-烷基（芳基）的制备一种新的，有效的和简单的路线被取代的4-氧代-4- ħ -pyrido- [1,2一]嘧啶类，其中烷基= CH 3 ; 芳= C 6 H ^ 5，4-FC 6 H ^ 4，4-CLC 6 ħ 4，4- BRC 6 ħ 4，4-CH 3 C ^ 6 ħ 4，4-OCH 3 C ^ 6 ħ 4，4-NO 2 C 6高4 据报道，在温和的条件下，β-烷氧基乙烯基三氯甲基酮与2-氨基吡啶的反应收率为45-80％。
• Transition-metal-free lactamization of C(sp³)–H bonds with CO₂: facile generation of pyrido[1,2-<i>a</i>]pyrimidin-4-ones
  作者：Zhen Zhang、Xiao-Yu Zhou、Jin-Gui Wu、Lei Song、Da-Gang Yu

  DOI：10.1039/c9gc03659h

  日期：——

  A novel carbonylation of C(sp3)–H bonds in pyridylamines with one atmosphere of CO2 is reported to synthesize important pyrimidinones in good yields. This transition-metal-free and redox-neutral process features the use of a nontoxic carbonyl source, broad substrate scope, good functional group tolerance, facile scalability and easy product derivatization.

  据报道，吡啶胺中C（sp 3）-H键在一种CO 2气氛下的新型羰基化反应以高收率合成了重要的嘧啶酮。这种无过渡金属和氧化还原中性的方法的特点是使用无毒的羰基来源，广泛的底物范围，良好的官能团耐受性，易扩展性和易于产品衍生化。