3-ethoxy-5-methyl-4-phenoxy-1H-pyrazole | 1207678-62-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-ethoxy-5-methyl-4-phenoxy-1H-pyrazole
• 英文别名: 4-phenoxy-3-ethoxy-5-methyl-1H-pyrazole
• CAS: 1207678-62-3
• 化学式: C₁₂H₁₄N₂O₂
• 分子量: 218.255
• InChiKey: CADZLDQYBSTIIL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  47.1
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  5-环丙基-2-氟吡啶 、 3-ethoxy-5-methyl-4-phenoxy-1H-pyrazole 在 caesium carbonate 作用下， 以 乙腈 为溶剂， 反应 6.0h， 以17%的产率得到5-cyclopropyl-2-(3-ethoxy-5-methyl-4-phenoxy-1H-pyrazol-1-yl)-pyridine
  参考文献：
  名称：

  Original 2-(3-Alkoxy-1H-pyrazol-1-yl)azines Inhibitors of Human Dihydroorotate Dehydrogenase (DHODH)

  摘要：

  Following our discovery of human dihydroorotate dehydrogenase (DHODH) inhibition by 2-(3-alkoxy-1H-pyrazol-1-yl)pyrimidine derivatives as well as 2-(4-benzyl-3-ethoxy-5-methyl-1H-pyrazol-1-yl)-5-methylpyridine, we describe here the syntheses and evaluation of an array of azine-bearing analogues. As in out previous report, the structure activity study of this series of human DHODH inhibitors was based on a phenotypic assay measuring measles virus replication. Among other inhibitors, this round of syntheses and biological evaluation iteration led to the highly active 5-cyclopropyl-2-(4-(2,6-difluorophenoxy)-3-isopropoxy-5-methyl-1H-pyrazol-1-yl)-3-fluoropyridine. Inhibition of DHODH by this compound was confirmed in an array of in vitro assays, including enzymatic tests and cell-based assays for viral replication and cellular growth. This molecule was found to be more active than the known inhibitors of DHODH, brequinar and teriflunomide, thus opening perspectives for its Use as a tool or for the design of an original series of immunosuppressive agent. Moreover, because other Series of inhibitors of human DHODH have been found to also affect Plasmodium falciparum DHODH, all the compounds were assayed for their effect on P. falciparum growth. However, the modest in vitro inhibition solely observed for two compounds did not correlate with their inhibition of P. falciparum DHODH.

  DOI：

  10.1021/acs.jmedchem.5b00606
• 作为产物：
  描述：

  苯酚 在 盐酸肼 、 sodium hydride 作用下， 以 乙醇 、 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 7.0h， 生成 3-ethoxy-5-methyl-4-phenoxy-1H-pyrazole
  参考文献：
  名称：

  Original 2-(3-Alkoxy-1H-pyrazol-1-yl)pyrimidine Derivatives as Inhibitors of Human Dihydroorotate Dehydrogenase (DHODH)

  摘要：

  From a research program aimed at the design of new chemical entities followed by extensive screening on various models of infectious diseases, an original series of 2-(3-alkoxy-1H-pyrazol-1-yl)pyrimidines endowed with notable antiviral properties were found. Using a whole cell measles virus replication assay, we describe here some aspects of the iterative process that, from 2-(4-benzyl-3-ethoxy-5-methyl-1H-pyrazol-1-yl)pyrimidine, led to 2-(4-(2,6-difluorophenoxy)-3-isopropoxy-5-methyl-1H-pyrazol-1-yl)-5-ethylpyrimidine and a 4000-fold improvement of antiviral activity with a subnanomolar level of inhibition. Moreover, recent precedents in the literature describing antiviral derivatives acting at the level of the de novo pyrimidine biosynthetic pathway led us to determine that the mode of action of this series is based on the inhibition of the cellular dihydroorotate dehydrogenase (DHODH), the fourth enzyme of this pathway. Biochemical studies with recombinant human DHODH led us to measure IC50 as low as 13 nM for the best example of this original series when using 2,3-dimethoxy-5-methyl-6-(3-methyl-2-butenyl)-1,4-benzoquinone (coenzyme Q(1)) as a surrogate for coenzyme Q(10), the cofactor of this enzyme.

  DOI：

  10.1021/jm501446r

文献信息

• Alkoxypyrazoles and the process for their preparation
  申请人：Institut Pasteur

  公开号：EP2151433A1

  公开（公告）日：2010-02-10

  The present invention relates to a alkoxypyrazoles preparation process, and new alkoxypyrazole compounds.

  本发明涉及一种烷氧基吡唑的制备方法，以及新的烷氧基吡唑化合物。
• Pyrazole derivatives as dihydroorotate dehydrogenase (DHODH) inhibitors
  申请人：INSTITUT PASTEUR

  公开号：EP2929883A1

  公开（公告）日：2015-10-14

  The present invention relates to compounds of formula (I) for their use in the treatment and/or prevention of auto-immune or auto-immune related diseases, cancer, viral infections, and central nervous system diseases and disorders, by inhibiting human dehydroorate dehydrogenase (DHODH): Wherein R1, R2, R3, R4 and Ar are as defined in claim 1.

  本发明涉及式（I）化合物，通过抑制人脱氢脱氢酶（DHODH），用于治疗和/或预防自身免疫或自身免疫相关疾病、癌症、病毒感染以及中枢神经系统疾病和失调： 其中 R1、R2、R3、R4 和 Ar 如权利要求 1 所定义。
• [EN] NEW ALKOXYPYRAZOLES<br/>[FR] NOUVEAUX ALCOXYPYRAZOLES
  申请人：PASTEUR INSTITUT

  公开号：WO2010015657A2

  公开（公告）日：2010-02-11

  The present invention relates to a alkoxypyrazoles preparation process, and new alkoxypyrazoles compounds.