Ethyl 3-(tert-butoxymethyl)-5-methyl-1H-pyrazole-4-carboxylate | 518990-61-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: Ethyl 3-(tert-butoxymethyl)-5-methyl-1H-pyrazole-4-carboxylate
• 英文别名: ethyl 5-(tert-butoxymethyl)-3-methyl-1H-pyrazole-4-carboxylate；3-tert-butoxymethyl-5-methyl-1H-pyrazole-4-carboxylic acid ethyl ester；ethyl 5-methyl-3-[(2-methylpropan-2-yl)oxymethyl]-1H-pyrazole-4-carboxylate
• CAS: 518990-61-9
• 化学式: C₁₂H₂₀N₂O₃
• 分子量: 240.302
• InChiKey: FVRHOBZUEJHIGI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  17
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  64.2
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  Ethyl 3-(tert-butoxymethyl)-5-methyl-1H-pyrazole-4-carboxylate 在 吡啶 、 盐酸 、 copper(II) acetate monohydrate 、 sodium hydroxide 作用下， 以 四氢呋喃 、 乙醇 、 水 、 乙酸乙酯 为溶剂， 生成 5-(hydroxymethyl)-3-methyl-1-[2-[3-(trifluoromethyl)benzyl]-1-benzothiophen-7-yl]-1H-pyrazole-4-carboxylic acid
  参考文献：
  名称：

  Design and synthesis of 1-(1-benzothiophen-7-yl)-1H-pyrazole, a novel series of G protein-coupled receptor 52 (GPR52) agonists

  摘要：

  G-protein-coupled receptor 52 (GPR52) is classified as an orphan Gs-coupled G-protein-coupled receptor. GPR52 cancels dopamine D2 receptor signaling and activates dopamine D1/N-methyl-D-aspartate receptors via intracellular cAMP accumulation. Therefore, GPR52 agonists are expected to alleviate symptoms of psychotic disorders. A novel series of 1-(benzothiophen-7-yl)-1H-pyrazole as GPR52 agonists was designed and synthesized based on compound 1b. Compound 1b has been reported by our group as the first orally active GPR52 agonist, but high lipophilicity and poor aqueous solubility still remained as issues for candidate selection. To resolve these issues, replacement of the benzene ring at the 7-positon of compound 1b with heterocylic rings, such as pyrazole and pyridine, was greatly expected to reduce lipophilicity to levels for which calculated logD values were lower than that of compound 1b. While evaluating the pyrazole derivatives, introduction of a methyl substituent at the 3-position of the pyrazole ring led to increased GPR52 agonistic activity. Moreover, additional methyl substituent at the 5-position of the pyrazole and further introduction of hydroxy group to lower logD led to significant improvement of solubility while maintaining the activity. As a result, we identified 3-methyl-5-hydroxymethyl-1H-pyrazole derivative 17 (GPR52 EC50 = 21 nM, E-max = 103%, logD = 2.21, Solubility at pH 6.8 = 21 mu g/mL) with potent GPR52 agonistic activity and good solubility compared to compound 1b. Furthermore, this compound 17 dose-dependently suppressed methamphetamine-induced hyperlocomotion in mice. (c) 2018 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2018.02.005
• 作为产物：
  描述：

  4-叔丁氧基乙酰乙酸乙酯 在 吡啶 、 一水合肼 作用下， 以 正己烷 、 溶剂黄146 、 乙酸乙酯 为溶剂， 生成 Ethyl 3-(tert-butoxymethyl)-5-methyl-1H-pyrazole-4-carboxylate
  参考文献：
  名称：

  LIGAND-DIRECTED COVALENT MODIFICATION OF PROTEIN

  摘要：

  本发明涉及酶抑制剂。更具体地说，本发明涉及配体导向的蛋白共价修饰；相同设计方法；相同的药物配方；以及使用方法。

  公开号：

  US20110269244A1

文献信息

• AMIDE COMPOUND
  申请人：Takeda Pharmaceutical Company Limited

  公开号：EP2518054A1

  公开（公告）日：2012-10-31

  A compound represented by the formula (I) wherein ring Cy1 is a 5-membered aromatic heterocycle optionally further substituted besides a group represented by -A-B, ring Cy2 is an optionally substituted benzene ring, ring Cy3 is an optionally substituted 5-membered aromatic heterocycle, ring Cy4 is an optionally substituted 6-membered aromatic ring, A is -CONRa- or -NRaCO-, Ra is a hydrogen atom or a substituent, B is a hydrogen atom or an optionally substituted C1-6 alkyl-group, X is an optionally substituted C1-2 alkylene, -Y-, -Y-CH2- or - CH2-Y-, Y is an oxygen atom, -NRb- or -S(O)m-, Rb is a hydrogen atom or a substituent, and m is 0, 1 or 2, provided that N-methyl-4-[2-[3,4,5-trimethoxyphenyl)amino]-1,3-benzoxazol-7-yl]thiophene-2-carboxamide is excluded, or a salt thereof, has an agonistic action on GPR52, and is useful as an agent for the prophylaxis or treatment of schizophrenia and the like.

  化合物的化学式为（I），其中环Cy1是一个5-成员芳香杂环，除了由-A-B表示的基团外，还可以进一步取代，环Cy2是一个可选取代的苯环，环Cy3是一个可选取代的5-成员芳香杂环，环Cy4是一个可选取代的6-成员芳香环，A是 -CONRa- 或 -NRaCO-，Ra是氢原子或取代基，B是氢原子或可选取代的C1-6烷基，X是可选取代的C1-2烷基，-Y-，-Y-CH2- 或 - CH2-Y-，Y是氧原子，-NRb- 或 -S(O)m-，Rb是氢原子或取代基，m为0、1或2，提供N-甲基-4-[2-[3,4,5-三甲氧基苯基)氨基]-1,3-苯并噁唑-7-基]噻吩-2-羧酰胺被排除，或其盐，对GPR52有激动作用，并且可用作预防或治疗精神分裂症等疾病的药物。
• Benzimidazoles
  申请人：Edwards L. Michael

  公开号：US20060014756A1

  公开（公告）日：2006-01-19

  The invention is directed to physiologically active compounds of the general formula (Ix) and compositions containing such compounds, and their prodrugs, and pharmaceutically acceptable salts and solvates of such compounds and their prodrugs, as well as to novel compounds within the scope of formula (Ix), and to processes for their preparation. Such compounds and compositions have valuable pharmaceutical properties, in particular the ability to inhibit kinases.

  本发明涉及一般式（Ix）的生理活性化合物及含有这种化合物的组合物，以及它们的前药、药学上可接受的盐和溶剂化物，还涉及在式（Ix）范围内的新化合物和它们的制备方法。这种化合物和组合物具有有价值的药物性质，特别是抑制激酶的能力。
• PYRAZOLE-SUBSTITUTED BENZIMIDAZOLE DERIVATIVES FOR USE IN THE TREATMENT OF CANCER AND AUTOIMMUNE DISORDERS
  申请人：Walmsley David Lee

  公开号：US20090131470A1

  公开（公告）日：2009-05-21

  Compounds of formula (I) are inhibitors of PDK1 and CHK1 activity, and of use in the treatment of cancer and autoimmune disorders (I): wherein R 2 is a radical of formula R 7 —(CH 2 ) n− , or a radical of formula -Alk-N(—R 5 )—R 9 wherein n is 0, 1, 2 or 3 and Alk is C 1 -C 6 alkylene; R 7 is (i) a heterocyclic ring of 5 or 6 ring atoms coupled via a ring carbon wherein the sole heteroatom is nitrogen, optionally substituted by C 1 -C 6 alkyl or aryl C 1 -C 6 alkyl, (ii) 1-aza-bicyclo[2.2.2]oct-3-yl, or (iii) 8-methyl-8-aza-bicyclo[3.2.1]oct-3-yl; R 8 and R 9 are independently selected from hydrogen or C 1 -C 3 alkyl; and the remaining substituents are as defined in the claims.

  式(I)的化合物是PDK1和CHK1活性的抑制剂，可用于治疗癌症和自身免疫性疾病(I)：其中R2是公式R7—(CH2)n−的基团，或公式-Alk-N(—R5)—R9的基团，其中n为0、1、2或3，Alk为C1-C6烷基；R7是(i) 通过一个环碳原子耦合的5或6环原子的杂环环，其中唯一的杂原子是氮，可选地被C1-C6烷基或芳基C1-C6烷基取代，(ii) 1-aza-bicyclo[2.2.2]oct-3-yl，或(iii) 8-甲基-8-aza-bicyclo[3.2.1]oct-3-yl；R8和R9独立地选择自氢或C1-C3烷基；其余取代基如权利要求所定义。
• WO2006/134318
  申请人：——

  公开号：——

  公开（公告）日：——
• BENZIMIDAZOLES AND ANALOGUES AND THEIR USE AS PROTEIN KINASES INHIBITORS
  申请人：Aventis Pharmaceuticals Inc.

  公开号：EP1441725A1

  公开（公告）日：2004-08-04