3,5-二氯吡嗪-2-甲酸 | 312736-49-5

• 物质功能分类: 医药中间体 - 杂环化合物
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 中文名称: 3,5-二氯吡嗪-2-甲酸
• 中文别名: 3,5-二氯吡嗪-2-羧酸
• 英文名称: 3,5-dichloropyrazine-2-carboxylic acid
• CAS: 312736-49-5
• 化学式: C₅H₂Cl₂N₂O₂
• mdl: MFCD09909819
• 分子量: 192.989
• InChiKey: QRFOSHOPPFYNAH-UHFFFAOYSA-N

物化性质

• 沸点：
  335.1±37.0 °C(Predicted)
• 密度：
  1.718±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  63.1
• 氢给体数：
  1
• 氢受体数：
  4

安全信息

• 海关编码：
  2933990090
• 危险性防范说明：
  P261,P280,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H332,H335
• 储存条件：
  室温

制备方法与用途

用途

3,5-二氯吡嗪-2-甲酸是一种有机中间体，可用于制备β分泌酶抑制剂的全氟化环丙基稠合的1,3-噁嗪-2-胺化合物。

制备

在室温下，向装有2.0M二异丙基氨基锂（庚烷/四氢呋喃/乙基苯溶剂，体积：11.10mL）溶液的四口瓶中滴加2,6-二氯吡嗪（1.44g）。随后在−78℃下向其中缓慢滴加THF（20mL）溶解的2,6-二氯吡嗪溶液。将反应混合物继续搅拌1.5小时后，通过套管将其转移到装有干冰冷却剂的三颈烧瓶中。让反应体系升温至室温并静置21小时。随后用5M盐酸淬灭反应混合物。使用饱和食盐水和乙酸乙酯分别萃取有机相和水相。将水相用5M HCl调至pH 3.5，然后使用乙酸乙酯（共6次）萃取出其中的有机成分。合并后的有机层经无水硫酸镁干燥、过滤并浓缩。通过硅胶快速柱色谱法（以DCM为洗脱剂，含有5%至10%甲醇的比例梯度洗脱），最终得到淡棕色固体状3,5-二氯吡嗪-2-甲酸（0.408g，纯度：2.11mmol，产率：22%）。LC/MS (ESI+) m/z = 193.0 (M+H)+。

反应信息

• 作为反应物：
  描述：

  3,5-二氯吡嗪-2-甲酸 在 四(三苯基膦)钯 、 palladium 10% on activated carbon 、 氢气 、 乙酸酐 作用下， 以 四氢呋喃 、 甲醇 、 正己烷 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， -78.0~150.0 ℃ 、101.33 kPa 条件下， 反应 5.92h， 生成 3-(2-fluoro-4-trimethylsilanyl-phenylamino)-5-formylaminomethyl-pyrazine-2-carboxylic acid methyl ester
  参考文献：
  名称：

  Structure based design of novel 6,5 heterobicyclic mitogen-activated protein kinase kinase (MEK) inhibitors leading to the discovery of imidazo[1,5-a] pyrazine G-479

  摘要：

  Use of the tools of SBDD including crystallography led to the discovery of novel and potent 6,5 heterobicyclic MEKi's [J. Med. Chem. 2012, 55, 4594]. The core change from a 5,6 heterobicycle to a 6,5 heterobicycle was driven by the desire for increased structural diversity and aided by the co-crystal structure of G-925 [J. Med. Chem. 2012, 55, 4594]. The key design feature was the shift of the attachment of the five-membered heterocyclic ring towards the B ring while maintaining the key hydroxamate and anilino pharamcophoric elements in a remarkably similar position as in G-925. From modelling, changing the connection point of the five membered ring heterocycle placed the H-bond accepting nitrogen within a good distance and angle to the Ser212 [J. Med. Chem. 2012, 55, 4594]. The resulting novel 6,5 benzoisothiazole MEKi G-155 exhibited improved potency versus aza-benzofurans G-925 and G-963 but was a potent inhibitor of cytochrome P450's 2C9 and 2C19. Lowering the logD by switching to the more polar imidazo[1,5-a] pyridine core significantly diminished 2C9/2C19 inhibition while retaining potency. The imidazo[1,5-a] pyridine G-868 exhibited increased potency versus the starting point for this work (azabenzofuran G-925) leading to deprioritization of the azabenzofurans. The 6,5-imidazo[1,5-a] pyridine scaffold was further diversified by incorporating a nitrogen at the 7 position to give the imidazo[1,5-a] pyrazine scaffold. The introduction of the C7 nitrogen was driven by the desire to improve metabolic stability by blocking metabolism at the C7 and C8 positions (particularly the HLM stability). It was found that improving on G-868 (later renamed GDC-0623) required combining C7 nitrogen with a diol hydroxamate to give G-479. G-479 with polarity distributed throughout the molecule was improved over G-868 in many aspects. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2014.08.008
• 作为产物：
  描述：

  2,6-二氯吡嗪 在 二异丙胺 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 以22%的产率得到3,5-二氯吡嗪-2-甲酸
  参考文献：
  名称：

  AMINO-DIHYDROTHIAZINE AND AMINO-DIOXIDO DIHYDROTHIAZINE COMPOUNDS AS BETA-SECRETASE ANTAGONISTS AND METHODS OF USE

  摘要：

  本发明提供了一类新的化合物，用于调节β-分泌酶（BACE）活性。这些化合物具有一般的化学式I： 其中化学式I中的变量A4、A5、A6、A8、R1、R2、R3、R7和n在此独立地被定义。该发明还提供了包含这些化合物的药物组合物，以及这些化合物和组合物用于治疗与A-beta斑块形成和沉积相关的疾病和/或症状的对应用途，这些疾病和症状是由BACE的生物活性引起的。这种由BACE介导的疾病包括阿尔茨海默病、认知缺陷、认知障碍、精神分裂症和其他中枢神经系统疾病。该发明还提供了化学式II的化合物及其亚式化合物，中间体和用于制备化学式I-II化合物的有用过程和方法。

  公开号：

  US20140107109A1

文献信息

• Modulators of Cystic Fibrosis Transmembrane Conductance Regulator
  申请人：VERTEX PHARMACEUTICALS INCORPORATED

  公开号：US20160095858A1

  公开（公告）日：2016-04-07

  The present invention features a compound of formula I: or a pharmaceutically acceptable salt thereof, where R 1 , R 2 , R 3 , W, X, Y, Z, n, o, p, and q are defined herein, for the treatment of CFTR mediated diseases, such as cystic fibrosis. The present invention also features pharmaceutical compositions, method of treating, and kits thereof.

  本发明涉及一种具有以下化学式I的化合物： 或其药用可接受的盐，其中R 1 ，R 2 ，R 3 ，W，X，Y，Z，n，o，p和q在此处定义，用于治疗CFTR介导的疾病，如囊性纤维化。本发明还涉及药物组合物、治疗方法和相关工具包。
• [EN] AZA-HETEROBICYCLIC INHIBITORS OF MAT2A AND METHODS OF USE FOR TREATING CANCER<br/>[FR] INHIBITEURS AZA-HÉTÉROBICYCLIQUES DE MAT2A ET PROCÉDÉS D'UTILISATION POUR LE TRAITEMENT DU CANCER
  申请人：AGIOS PHARMACEUTICALS INC

  公开号：WO2020139992A1

  公开（公告）日：2020-07-02

  The present disclosure provides for compounds according to Formula I, Formula II, and their pharmaceutically acceptable salts, tautomers, and/or isotopologues as described in the disclosure. The compounds are inhibitors of methionine adenosyltransferase isoform 2A (MAT2A). Also provided are pharmaceutical compositions and methods of using the compounds for treating cancers, including some cancers in which the gene encoding methylthioadenosine phosphorylase (MTAP) is deleted.

  本公开提供了根据公式I、公式II以及其在公开描述中所述的药用可接受盐、互变异构体和/或同位素体的化合物。这些化合物是蛋氨酸腺苷转移酶同种型2A（MAT2A）的抑制剂。还提供了药物组合物和使用这些化合物治疗癌症的方法，包括一些缺失编码甲硫腺苷磷酸化酶（MTAP）基因的癌症。
• [EN] PERFLUORINATED CYCLOPROPYL FUSED 1,3-OXAZIN-2-AMINE COMPOUNDS AS BETA-SECRETASE INHIBITORS AND METHODS OF USE<br/>[FR] COMPOSÉS À BASE DE 1,3-OXAZIN-2-AMINE FUSIONNÉE AVEC DU CYCLOPROPYLE PERFLUORÉ UTILISABLES EN TANT QU'INHIBITEURS DE LA BÊTA-SÉCRÉTASE ET LEURS PROCÉDÉS D'UTILISATION
  申请人：AMGEN INC

  公开号：WO2014138484A1

  公开（公告）日：2014-09-12

  PERFLUORINATED CYCLOPROPYL FUSED 1,3-OXAZIN-2-AMINE COMPOUNDS AS BETA-SECRETASE INHIBITORS AND METHODS OF USE ABSTRACT OF THE DISCLOSURE The present invention provides a new class of compounds useful for the modulation of beta-secretase enzyme (BACE) activity. The compounds have a general Formula I: INSERT STRUCTURE HERE} I wherein variables A4, A5, A6, A8, each of Ra, Rb, R1, R2, R3 and R7 of Formula I, independently, are defined herein. The invention also provides pharmaceutical compositions comprising the compounds, and uses of the compounds and compositions for treatment of disorders and/or conditions related to A-beta plaque formation and deposition, resulting from the biological activity of BACE. Such BACE mediated disorders include, for example, Alzheimer's Disease, cognitive deficits, cognitive impairments, schizophrenia and other central nervous system conditions. The invention further provides compounds of Formulas II and III, and sub-formula embodiments thereof, intermediates and methods for preparing compounds of the invention.

  本发明提供了一类新的化合物，用于调节β-分泌酶（BACE）活性。这些化合物具有一般的化学式I：在此插入结构} I，其中变量A4、A5、A6、A8，以及化学式I中的每个Ra、Rb、R1、R2、R3和R7，在本文中分别定义。该发明还提供了包含这些化合物的药物组合物，以及用于治疗与A-beta斑块形成和沉积相关的疾病和/或症状的化合物和组合物的用途，这些疾病和症状是由BACE的生物活性引起的。这种由BACE介导的疾病包括阿尔茨海默病、认知缺陷、认知障碍、精神分裂症和其他中枢神经系统疾病。该发明还提供了化学式II和III的化合物，以及其亚式化合物、中间体和制备本发明化合物的方法。
• [EN] HETEROBICYCLIC INHIBITORS OF MAT2A AND METHODS OF USE FOR TREATING CANCER<br/>[FR] INHIBITEURS HÉTÉROBICYCLIQUES DE MAT2A ET PROCÉDÉS D'UTILISATION POUR LE TRAITEMENT DU CANCER
  申请人：AGIOS PHARMACEUTICALS INC

  公开号：WO2020243376A1

  公开（公告）日：2020-12-03

  The present disclosure provides for compounds according to Formula I, Formula II, and their pharmaceutically acceptable salts, tautomers, and/or isotopologues as described in the disclosure. The compounds are inhibitors of methionine adenosyltransferase isoform 2A (MAT2A). Also provided are pharmaceutical compositions and methods of using the compounds for treating cancers, including some cancers in which the gene encoding methylthioadenosine phosphorylase (MTAP) is deleted.

  本公开提供了根据公式I、公式II以及其在公开描述中所述的药用可接受盐、互变异构体和/或同位素体的化合物。这些化合物是蛋氨酸腺苷转移酶同种型2A（MAT2A）的抑制剂。还提供了药物组合物和使用这些化合物治疗癌症的方法，包括一些编码甲硫腺苷磷酸化酶（MTAP）的基因被删除的癌症。
• Cyclic compounds
  申请人：——

  公开号：US20040142930A1

  公开（公告）日：2004-07-22

  1. A cyclic compound of the formula (I) or a pharmacologically acceptable salt thereof, 1 wherein X is ═CH— or ═N—, Y is —NH—, —NR 4 —, —S—, —O—, —CH═N—, —N═CH—, —N═N—, —CH═CH—, etc., R 1 is a lower alkoxy group, an amino group, a heterocyclic ring containing N atom(s), or a hydroxy group substituted by a heterocyclic ring containing N atom(s) (each of which is optionally substituted), R 2 is a lower alkylamino group which is optionally substituted by an aryl group, a lower alkoxy group which is optionally substituted by an aryl group, a lower alkoxy group substituted by an aromatic heterocyclic ring containing N atom(s), R 3 is an aryl group, a heterocyclic ring containing N atom(s), a lower alkyl group, a lower alkoxy group, a cyclo lower alkoxy group, a hydroxy group substituted by a heterocyclic ring containing N atom(s), or an amino group (each of which is optionally substituted), and R 3 and a substituent in Y may be combined to form a lactone ring. The compound of the present invention has excellent selective PDE V inhibitory activity and therefore, is useful as a therapeutic or prophylactic drug for treating various diseases due to functional disorders on cGMP-signaling.

  化合物的公式（I）或其药理学上可接受的盐，其中X为═CH—或═N—，Y为—NH—，—NR4—，—S—，—O—，—CH═N—，—N═CH—，—N═N—，—CH═CH—等，R1为较低的烷氧基，氨基，含N原子的杂环环，或者由含N原子的杂环环取代的羟基（每个都可以取代），R2为较低的烷基氨基基，可以由芳基取代，较低的烷氧基，可以由芳基取代，由含N原子的芳基取代的较低的烷氧基，R3为芳基，含N原子的杂环环，较低的烷基，较低的烷氧基，环状较低的烷氧基，由含N原子的杂环环取代的羟基，或者氨基（每个都可以取代），R3和Y中的取代基可以结合形成内酯环。本发明的化合物具有优异的选择性PDE V抑制活性，因此，可用作治疗或预防因cGMP信号传导功能障碍引起的各种疾病的药物。