8-甲基-4-氧代-4H-吡啶基[1,2-A]嘧啶-3-羧酸 | 34662-59-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶并嘧啶类
• 中文名称: 8-甲基-4-氧代-4H-吡啶基[1,2-A]嘧啶-3-羧酸
• 英文名称: 8-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acid
• 英文别名: 8-methyl-4-oxopyrido[1,2-a]pyrimidine-3-carboxylic acid
• CAS: 34662-59-4
• 化学式: C₁₀H₈N₂O₃
• mdl: MFCD00067818
• 分子量: 204.185
• InChiKey: VXWGYFKVZCOYCT-UHFFFAOYSA-N

物化性质

• 熔点：
  225 °C (decomp)
• 沸点：
  374.0±52.0 °C(Predicted)
• 密度：
  1.42±0.1 g/cm3(Predicted)
• 溶解度：
  >30.6 [ug/mL]

计算性质

• 辛醇/水分配系数(LogP)：
  0.7
• 重原子数：
  15
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  70
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  8-甲基-4-氧代-4H-吡啶基[1,2-A]嘧啶-3-羧酸 在 氯甲酸乙酯 、 三乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 0.25h， 生成
  参考文献：
  名称：

  Pyrido[1,2-a]pyrimidin-4-ones as antiplasmodial falcipain-2 inhibitors

  摘要：

  Plasmodium falciparum cysteine protease falcipain-2 (FP-2) is a promising target for antimalarial chemotherapy and inhibition of this protease affects the growth of parasite adversely. A series of pyrido[1,2-a]pyrimidin-4-ones were synthesized and evaluated for their in vitro FP-2 inhibitory potential. Compounds (14,17) showed excellent FP-2 inhibition and can serve as lead compounds for further development of potent FP-2 inhibitors as potential antimalarial drugs. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2012.09.008
• 作为产物：
  描述：

  8-甲基-4-氧代-4H-吡啶并[1,2-a]嘧啶-3-羧酸乙酯 在 盐酸 作用下， 反应 2.0h， 以96.7%的产率得到8-甲基-4-氧代-4H-吡啶基[1,2-A]嘧啶-3-羧酸
  参考文献：
  名称：

  Pyrido[1,2-a]pyrimidin-4-ones as antiplasmodial falcipain-2 inhibitors

  摘要：

  Plasmodium falciparum cysteine protease falcipain-2 (FP-2) is a promising target for antimalarial chemotherapy and inhibition of this protease affects the growth of parasite adversely. A series of pyrido[1,2-a]pyrimidin-4-ones were synthesized and evaluated for their in vitro FP-2 inhibitory potential. Compounds (14,17) showed excellent FP-2 inhibition and can serve as lead compounds for further development of potent FP-2 inhibitors as potential antimalarial drugs. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2012.09.008

文献信息

• Selective Inhibition of DNA Polymerase β by a Covalent Inhibitor
  作者：Shelby C. Yuhas、Daniel J. Laverty、Huijin Lee、Ananya Majumdar、Marc M. Greenberg

  DOI：10.1021/jacs.1c02453

  日期：2021.6.2

  has been closely linked to cancer. Selective inhibitors of this enzyme are lacking. Inspired by DNA lesions produced by antitumor agents that inactivate Pol β, we have undertaken the development of covalent small-molecule inhibitors of this enzyme. Using a two-stage process involving chemically synthesized libraries, we identified a potent irreversible inhibitor (14) of Pol β (KI = 1.8 ± 0.45 μM, kinact

  DNA 聚合酶 β (Pol β) 在 DNA 修复中起着至关重要的作用，并且与癌症密切相关。缺乏这种酶的选择性抑制剂。受使 Pol β 失活的抗肿瘤剂产生的 DNA 损伤的启发，我们着手开发这种酶的共价小分子抑制剂。使用涉及化学合成文库的两阶段过程，我们确定了Pol β的有效不可逆抑制剂 ( 14 ) ( K I = 1.8 ± 0.45 μM, k inact = (7.0 ± 1.0) × 10 –3 s –1 )。抑制剂14比其他 DNA 聚合酶选择性地灭活 Pol β。用14处理的 Pol β 胰蛋白酶消化物的 LC-MS/MS 分析鉴定了聚合酶结合位点内共价修饰的两个赖氨酸，其中一个先前被确定在DNA结合中起作用。荧光各向异性实验表明，用14预处理 Pol β可防止 DNA 结合。在野生型小鼠胚胎成纤维细胞 (MEF) 中使用前抑制剂 ( pro - 14 ) 的实验表明，抑制剂
• Development of fluorescent probes specific for parallel-stranded G-quadruplexes by a library approach
  作者：Liyun Zhang、Jun Cheng Er、Xin Li、Jun Jie Heng、Animesh Samanta、Young-Tae Chang、Chi-Lik Ken Lee

  DOI：10.1039/c5cc01601k

  日期：——

  A novel fluorescent sensor with super selectivity to G-quadruplexes was discovered by the library approach.

  通过文库方法发现了一种对G-四链体具有超强选择性的新型荧光传感器。
• Synthesis and biological evaluation of some novel pyrido[1,2-a]pyrimidin-4-ones as antimalarial agents
  作者：Uttam R. Mane、D. Mohanakrishnan、Dinkar Sahal、Prashant R. Murumkar、Rajani Giridhar、Mange Ram Yadav

  DOI：10.1016/j.ejmech.2014.04.031

  日期：2014.5

  showed moderate antimalarial activity. Cytotoxicity study was performed against mammalian cell line (Huh-7) by using the MTT assay for the moderately active compounds. Structural activity relationship (SAR) studies displayed that B-ring unsubstituted pyrido[1,2-a]pyrimidine scaffold is responsible for the antimalarial activities of the evaluated derivatives. This SAR based antimalarial screening supported

  合成了新型吡啶并[1,2- a ]嘧啶-4-酮，并通过SYBR Green I分析法评估了对氯喹（CQ）敏感的Pf 3D7菌株的促红细胞生成阶段的抗疟活性。对42种不同化合物进行的抗疟疾筛查显示，3-氟苄基（4-oxo-4 H-吡啶基[1,2 -a ]嘧啶-3-基）氨基甲酸酯（21，IC 50值为33μM）和4-Oxo- N -[[4-（三氟甲基）苄基] -4 H-吡啶基[1,2- a ]嘧啶-3-羧酰胺（37，IC 50值37μM）表现出中等抗疟活性。通过对中等活性化合物进行MTT分析，对哺乳动物细胞系（Huh-7）进行了细胞毒性研究。结构活性关系（SAR）研究表明，B环未取代的吡啶并[1,2- a ]嘧啶骨架负责所评估衍生物的抗疟活性。这种基于SAR的抗疟疾筛选方法支持将吡啶并[1,2- a ]嘧啶-4-酮视为主要的杂环结构，以进一步开发更有效的抗疟疾活性衍生物。
• Antagonists of melanin concentrating hormone effects on the melanin concetrating hormone receptor
  申请人：——

  公开号：US20030229119A1

  公开（公告）日：2003-12-11

  The present invention relates to the antagonism of the effects of melanin-concentrating hormone (MCH) through the melanin concentrating hormone receptor which is useful for the prevention or treatment of eating disorders, weight gain, obesity, abnormalities in reproduction and sexual behavior, thyroid hormone secretion, diuresis and water/electrolyte homeostasis, sensory processing, memory, sleeping, arousal, anxiety, depression, seizures, neurodegeneration and psychiatric disorders.

  本发明涉及通过黑素浓缩激素受体对黑素浓缩激素（MCH）效果的拮抗，对于预防或治疗进食障碍、体重增加、肥胖、生殖和性行为异常、甲状腺激素分泌、利尿和水/电解质平衡、感觉处理、记忆、睡眠、觉醒、焦虑、抑郁、癫痫发作、神经退行性疾病和精神疾病是有用的。
• Pyridopyrimidine derivatives useful in treatment of ulcers
  申请人：Chinoin Gyogyszer- es Vegyeszeti Termekek Gyar Rt.

  公开号：US05158951A1

  公开（公告）日：1992-10-27

  The present invention relates to novel 4-oxo-4H-pyrido[1,2-a]pyrimidine -3-carbonamide derivatives of the general formula (I) and the acid addition salts thereof, pharmaceutical compositions containing them and a process for their preparation. In the general formula (I) ##STR1## wherein: R stands for a C.sub.1-12 alkyl group optionally substituted by a C.sub.1-4 alkoxycarbonyl group; a C.sub.3-9 cycloalkyl, adamantyl or optionally substituted phenyl group; R.sup.1 means hydrogen or a C.sub.1-4 alkyl group; or R and R.sup.1 together form a --(CH.sub.2).sub.n -- chain, wherein n is 4, 5 or 6; R.sup.2 stands for hydrogen, a C.sub.1-4 alkyl group or halogen; R.sup.3 repesents hydrogen or a C.sub.1-4 alkyl group; and m is 0 or 1. The compounds of the general formula (I) possess a gastroprotective effect and are useful for the prevention and therapy of ulcers of the stomach and the small intestine.

  本发明涉及一种新的4-氧代-4H-吡啶并[1,2-a]嘧啶-3-羰胺衍生物，其通式为(I)，以及其酸盐，含有它们的药物组合物和其制备方法。在通式(I)中：其中：R代表一个C.sub.1-12烷基基团，该基团可选择地被C.sub.1-4烷氧羰基基团取代；C.sub.3-9环烷基、脱氢脂环基或可选择地取代的苯基；R.sup.1代表氢或C.sub.1-4烷基基团；或R和R.sup.1一起形成一个--(CH.sub.2).sub.n--链，其中n为4、5或6；R.sup.2代表氢、C.sub.1-4烷基基团或卤素；R.sup.3代表氢或C.sub.1-4烷基基团；m为0或1。通式(I)的化合物具有胃保护作用，对预防和治疗胃和小肠溃疡有用。