6,6-二甲基-4,5,6,7-四氢-2H-吲唑-3-羧酸乙酯 | 1233243-56-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 中文名称: 6,6-二甲基-4,5,6,7-四氢-2H-吲唑-3-羧酸乙酯
• 中文别名: 6,6-二甲基-4,5,6,7-四氢-1H-吲唑-3-甲酸乙酯
• 英文名称: ethyl 6,6-dimethyl-4,5,6,7-tetrahydro-1H-indazole-3-carboxylate
• 英文别名: 6,6-Dimethyl-4,5,6,7-tetrahydro-1H-indazole-3-carboxylic acid ethyl ester；ethyl 6,6-dimethyl-1,4,5,7-tetrahydroindazole-3-carboxylate
• CAS: 1233243-56-5；1423716-54-4
• 化学式: C₁₂H₁₈N₂O₂
• 分子量: 222.287
• InChiKey: JTFYBRYMPBDWKO-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：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  55
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  6,6-二甲基-4,5,6,7-四氢-2H-吲唑-3-羧酸乙酯 在 lithium hydroxide monohydrate 、 sodium hydride 、 O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、 N,N-二异丙基乙胺 作用下， 以 四氢呋喃 、 水 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 1.0h， 生成 tert-butyl 4-((4-(6,6-dimethyl-1-((2-(trimethylsilyl)ethoxy)methyl)-4,5,6,7-tetrahydro-1H-indazole-3-carboxamido)-1H-pyrazol-1-yl)(phenyl)methyl)piperidine-1-carboxylate
  参考文献：
  名称：

  Property- and Structure-Guided Discovery of a Tetrahydroindazole Series of Interleukin-2 Inducible T-Cell Kinase Inhibitors

  摘要：

  Interleukin-2 inducible T-cell kinase (ITK), a member of the Tec family of tyrosine kinases, plays a major role in T-cell signaling downstream of the T-cell receptor (TCR), and considerable efforts have been directed toward discovery of ITK-selective inhibitors as potential treatments of inflammatory disorders such as asthma. Using a previously disclosed indazole series of inhibitors as a starting point, and using X-ray crystallography and solubility forecast index (SFI) as guides, we evolved a series of tetrahydroindazole inhibitors with improved potency, selectivity, and pharmaceutical properties. Highlights include identification of a selectivity pocket above the ligand plane, and identification of appropriate lipophilic substituents to occupy this space. This effort culminated in identification of a potent and selective ITK inhibitor (GNE-9822) with good ADME properties in preclinical species.

  DOI：

  10.1021/jm500550e
• 作为产物：
  描述：

  4,4-二甲基环己酮 在 吡啶 、 正丁基锂 、 二异丙胺 、 三氯氧磷 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 1.0h， 生成 6,6-二甲基-4,5,6,7-四氢-2H-吲唑-3-羧酸乙酯
  参考文献：
  名称：

  Property- and Structure-Guided Discovery of a Tetrahydroindazole Series of Interleukin-2 Inducible T-Cell Kinase Inhibitors

  摘要：

  Interleukin-2 inducible T-cell kinase (ITK), a member of the Tec family of tyrosine kinases, plays a major role in T-cell signaling downstream of the T-cell receptor (TCR), and considerable efforts have been directed toward discovery of ITK-selective inhibitors as potential treatments of inflammatory disorders such as asthma. Using a previously disclosed indazole series of inhibitors as a starting point, and using X-ray crystallography and solubility forecast index (SFI) as guides, we evolved a series of tetrahydroindazole inhibitors with improved potency, selectivity, and pharmaceutical properties. Highlights include identification of a selectivity pocket above the ligand plane, and identification of appropriate lipophilic substituents to occupy this space. This effort culminated in identification of a potent and selective ITK inhibitor (GNE-9822) with good ADME properties in preclinical species.

  DOI：

  10.1021/jm500550e

文献信息

• 1,2,4-oxadiazole derivatives and their therapeutic use
  申请人：Laboratorios Almirall, S.A.

  公开号：EP2202232A1

  公开（公告）日：2010-06-30

  New derivatives of general formula (I), or pharmaceutically acceptable salts or N-oxides thereof wherein, A is selected from the group consisting of -N-, -O- and -S-; B and C are independently selected from the group consisting of-N- and -O-, with the proviso that at least two of A, B and C are nitrogen atoms; G1 is selected from the group consisting of -CH2-, -NH- and -O-; G2 is selected from the group consisting of -NR4- and -O-; R1 represents: ➢ a 8 to 10 membered bicyclic N-containing heteroaryl group optionally substituted with a C1-4 carboxyalkyl group or a C1-4 aminoalkyl group, ➢ a pyridyl group optionally substituted with one or more substituents selected from hydroxy groups, C1-4 alkyl groups, C1-4 carboxyalkyl groups, C1-4 haloalkyl groups, C1-4 alkoxy groups, amino groups, C1-4 aminoalkyl groups and C1-4 aminoalkoxy groups, ➢ a pyridone group substituted with one or more C1-4 alkyl groups; C1-4 haloalkyl groups or C1-4 aminoalkyl groups, or ➢ a group of formula: wherein: • Ra represents a hydrogen atom, a halogen atom, a C1-4 alkyl group, C3-4 cycloalkyl group or a -CF3 group; • Rb represents a hydrogen atom, a halogen atom, a C14 alkyl group, a -CF3 group or a C1-4 alkoxy group; • Rd represents a hydrogen atom, a C1-4 alkyl group or a C1-4 alkoxy group; • Rc represents: ○ a hydrogen atom, a C1-4 hydroxyalkyl group, a C1-4 aminoalkyl group which is optionally substituted with one or more substituents selected from halogen atoms, hydroxy groups and -CF3 groups; ○ a 4 to 6-membered saturated N-containing heterocyclic ring optionally substituted with a C1-2 carboxyalkyl group; ○ -(CH2)(0-4)-C(O)OR', -(CH2)(0-4)-C(O)NR'R", -(CH2)(0-4)-NHC(O)R", -S(O)2NR'R", -O-(CH2)(2-4)NR'R", -O-(CH2)(1-4)C(O)OR", -O-(CH2)(1-4)-C(O)NR'R", -(CH2)(0-4)-NR'R", -(CH2)(0-4)-CONHS(O)2R', -(CH2)(0-4)-NHS(O)2R' or -(CH2)(0-3)-N H-(CH2)(1-3)-(NH)(0-1)S(O)2R' wherein, ■ R' represents a hydrogen atom or a C1-4 alkyl group, ■ R" represents a hydrogen atom, a C1-4 alkyl group, a C3-4 cycloalkyl group, a C1-4 carboxyalkyl group, a C1-4 haloalkyl group, a C1-4 hydroxyalkyl group or a 6 membered, saturated N-containing heterocyclic ring, or ■ R' and R" together with the nitrogen atom to which they are attached from a 4 to 6 membered heterocyclic group which contains, as heteroatoms, one N atom and, optionally, one further atom selected from N and O, and which is optionally substituted with a carboxy or a C1-4 carboxyalkyl group, or Rc together with Rd form a C5-6 cycloalkyl group optionally substituted by a -NHRf group, wherein Rf is selected from the group consisting of a hydrogen atom and a carboxymethyl group; R2 and R3 are independently selected from the group consisting of hydrogen atoms, halogen atoms and C1-4 alkyl groups; and R4 is selected from the group consisting of a hydrogen atom, a phenyl group, a C3-4 cycloalkyl-C1-4 alkyl group, C1-4 aminoalkyl group, C1-4 haloalkyl group and a linear or branched C1-4 alkyl group which is optionally substituted by a phenyl or a pyridyl group.

  通用公式（I）的新衍生物，或其药用可接受盐或N-氧化物，其中， A选自-N-，-O-和-S-组成的群; B和C分别选自-N-和-O-组成的群，但至少有两个A，B和C是氮原子; G1选自-CH2-，-NH-和-O-组成的群; G2选自-NR4-和-O-组成的群; R1代表: ➢一个含氮杂环的8到10成员双环基团，可选择地取代为C1-4羧基烷基基团或C1-4氨基烷基基团， ➢一个吡啶基，可选择地取代为一个或多个取代基，所选取代基包括羟基、C1-4烷基基团、C1-4羧基烷基基团、C1-4卤代烷基基团、C1-4烷氧基团、氨基、C1-4氨基烷基基团和C1-4氨氧基团， ➢一个吡啶酮基，取代为一个或多个C1-4烷基基团；C1-4卤代烷基基团或C1-4氨基烷基基团，或 ➢一个公式的基团： 其中: • Ra代表氢原子、卤原子、C1-4烷基基团、C3-4环烷基基团或-CF3基团; • Rb代表氢原子、卤原子、C14烷基基团、-CF3基团或C1-4烷氧基团; • Rd代表氢原子、C1-4烷基基团或C1-4烷氧基团; • Rc代表: ○氢原子、C1-4羟基烷基基团、C1-4氨基烷基基团，可选择地取代为一个或多个取代基，所选取代基包括卤原子、羟基和-CF3基团; ○一个4到6成员饱和的含氮杂环环，可选择地取代为C1-2羧基烷基基团; ○-(CH2)(0-4)-C(O)OR'，-(CH2)(0-4)-C(O)NR'R"，-(CH2)(0-4)-NHC(O)R"，-S(O)2NR'R"，-O-(CH2)(2-4)NR'R"，-O-(CH2)(1-4)C(O)OR"，-O-(CH2)(1-4)-C(O)NR'R"，-(CH2)(0-4)-NR'R"，-(CH2)(0-4)-CONHS(O)2R'，-(CH2)(0-4)-NHS(O)2R'或-(CH2)(0-3)-N H-(CH2)(1-3)-(NH)(0-1)S(O)2R'其中， ■ R'代表氢原子或C1-4烷基基团， ■ R"代表氢原子、C1-4烷基基团、C3-4环烷基基团、C1-4羧基烷基基团、C1-4卤代烷基基团、C1-4羟基烷基基团或6成员饱和的含氮杂环环，或 ■ R'和R"与它们连接的氮原子一起形成一个4到6成员的杂环基团，该基团包含一个N原子和可选择地一个进一步选择自N和O的原子，并可选择地取代为羧基或C1-4羧基烷基基团， 或Rc与Rd一起形成一个可选择地由-NHRf基团取代的C5-6环烷基基团，其中Rf选自氢原子和羧甲基基团; R2和R3分别选自氢原子、卤原子和C1-4烷基基团;和 R4选自氢原子、苯基团、C3-4环烷基-C1-4烷基基团、C1-4氨基烷基基团、C1-4卤代烷基基团和可选择地由苯基或吡啶基取代的线性或支链C1-4烷基基团。
• Highly Regioselective Organocatalyzed Synthesis of Pyrazoles from Diazoacetates and Carbonyl Compounds
  作者：Lei Wang、Jiayao Huang、Xiaojie Gong、Jian Wang

  DOI：10.1002/chem.201300047

  日期：2013.6.3

  β‐ketoesters, β‐diketones, and aldehydes), as well as the operational simplicity of this process, a convenient, practical, and highly modular pyrazole synthesis has been developed. We believe that this work will arouse more research interest in the organocatalytic synthesis of other biologically active heterocycles. Such studies are currently underway in our laboratory.

  已经开发了一系列羰基化合物与重氮乙酸酯之间的一般有机催化逆电子需求[3 + 2]环加成反应。该反应被仲胺作为“绿色促进剂”催化，以生成具有高区域选择性的取代吡唑。值得注意的是，这种[3 + 2]环加成反应在室温下使用简单且廉价的催化剂即可有效地进行。考虑到起始原料（例如酮，β-酮酸酯，β-二酮和醛）的多样性和现成的可用性，以及该方法的操作简便性，已开发了一种方便，实用且高度模块化的吡唑合成方法。我们相信这项工作将在其他生物活性杂环的有机催化合成中引起更多的研究兴趣。
• 1,2,4-OXADIAZOLE DERIVATIVES AND THEIR THERAPEUTIC USE
  申请人：Giulio Matassa Victor

  公开号：US20110311485A1

  公开（公告）日：2011-12-22

  The present disclosure relates to 1, 2, 4 oxadiazole derivatives of formula (I) as well as pharmaceutical compositions comprising them, and their use in therapy as agonists of the S1P1 receptors.

  本公开涉及公式（I）的1,2,4-噁二唑衍生物，以及包含它们的药物组合物，以及它们作为S1P1受体激动剂在治疗中的使用。
• [EN] OXADIAZOLE DERIVATIVE, PREPARATION METHOD THEREFOR AND USE THEREOF<br/>[FR] DÉRIVÉ D'OXADIAZOLE, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION<br/>[ZH] 一种噁二唑衍生物及其制备方法和用途
  申请人：[en]GALIXIR BIOTECHNOLOGY (SHANGHAI) LIMITED;[zh]星希尔生物科技（上海）有限公司

  公开号：WO2023179366A1

  公开（公告）日：2023-09-28

  一种噁二唑衍生物及其制备方法和用途，所述噁二唑衍生物具有式一所示结构。该噁二唑衍生物对S1P1具有非常好的激动作用，可以用于治疗或预防例如多发性硬化症、炎症性肠炎、类风湿性关节炎、特应性皮炎、移植性抗宿主病或银屑病等自身免疫性疾病。
• 1, 2, 4 -OXADIAZOLE DERIVATIVES AND THEIR THERAPEUTIC USE
  申请人：Almirall S.A.

  公开号：EP2370431A1

  公开（公告）日：2011-10-05