5-(fluoromethoxy)pyrazine-2-carboxamide | 1404337-87-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 5-(fluoromethoxy)pyrazine-2-carboxamide
• 英文别名: 5-(Fluoromethoxy)-2-pyrazinecarboxamide
• CAS: 1404337-87-6
• 化学式: C₆H₆FN₃O₂
• 分子量: 171.131
• InChiKey: NBDQHQREEXIYJH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.3
• 重原子数：
  12
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  78.1
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  5-(fluoromethoxy)pyrazine-2-carboxamide 、 (2S,5R)-6’-bromo-3’-fluoro-2-(fluoromethyl)-5-methyl-5-(methylsulfonyl)-2,3,4,5-tetrahydro[2,2’-bipyridin]-6-amine 在 tris-(dibenzylideneacetone)dipalladium(0) 、 caesium carbonate 、 4,5-双二苯基膦-9,9-二甲基氧杂蒽 作用下， 以 1,4-二氧六环 为溶剂， 反应 3.0h， 以82%的产率得到N-((2’S,5’R)-6’-amino-3-fluoro-2’-(fluoromethyl)-5’-methyl-5’-(methylsulfonyl)-2’,3’,4’,5’-tetrahydro[2,2’-bipyridin]-6-yl)-5-(fluoromethoxy)pyrazine-2-carboxamide
  参考文献：
  名称：

  调节具有吸电子基团的四氢吡啶-2-胺 BACE1 抑制剂的理化性质：一项系统研究

  摘要：

  药物化学家面临的一个共同挑战是将强碱性基团的共轭酸的 pK a降低到保持所需效果（通常是效力和/或溶解度）的范围内，但避免不希望的效果，例如高分布体积 (V d)、有限的膜渗透和脱靶结合，尤其是 hERG 通道和单胺受体。我们使用含有脒的 3,4,5,6-四氢吡啶-2-胺支架面临这一挑战，脒是 BACE1 潜在抑制剂的关键结构成分，BACE1 是构成淀粉样蛋白斑块的 Aβ 种类产生中的限速酶在阿尔茨海默病中。在我们努力平衡效力与实现大脑穿透的理想特性的过程中，我们在脒的 β 位置引入了一组不同的基团，它们调节 logD、PSA 和 pK a. 鉴于制备这些高度功能化弹头的合成挑战，我们首先开发了一个设计流程，包括预测的物理化学参数，这使我们能够只选择最有希望的合成候选者。为此，我们评估了一组商业软件包来预测物理化学性质，这可以指导药物化学家努力调节脒和胺碱的 pK a值。

  DOI：

  10.1016/j.ejmech.2021.114028

文献信息

• [EN] DIHYDROOXAZINE OR OXAZEPINE DERIVATIVES HAVING BACE1 INHIBITORY ACTIVITY<br/>[FR] DÉRIVÉS DE DIHYDROOXAZINE OU D'OXAZÉPINE AYANT UNE ACTIVITÉ INHIBITRICE DE BACE1
  申请人：SHIONOGI & CO

  公开号：WO2014065434A1

  公开（公告）日：2014-05-01

  The present invention provides a compound which has an effect of inhibiting amyloid beta production, especially an effect of inhibiting BACE1, and which is useful as a therapeutic or prophylactic agent for diseases induced by production, secretion and/or deposition of amyloid beta proteins. A compound of the formula (I):wherein X is -C(R3a)(R3b)-, -C(R3a)(R3b)-C(R3c)(R3d)- or -C(R3a)=C(R3c)-, R1 is substituted or unsubstituted alkyl or the like,R2a, R2b, R3a, R3b, R3c and R3d are each independently hydrogen, halogen or the like, R4 is hydrogen or halogen,Ring B is substituted or unsubstituted carbocycle or a substituted or unsubstituted heterocycle, or a pharmaceutically acceptable salt thereof.

  本发明提供了一种化合物，具有抑制淀粉样蛋白β产生的作用，特别是抑制BACE1的作用，并且可用作治疗或预防由淀粉样蛋白β蛋白的产生、分泌和/或沉积引起的疾病的药剂。式(I)的化合物：其中X为-C(R3a)(R3b)-，-C(R3a)(R3b)-C(R3c)(R3d)-或-C(R3a)=C(R3c)-，R1为取代或未取代的烷基或类似物，R2a、R2b、R3a、R3b、R3c和R3d分别独立地为氢、卤素或类似物，R4为氢或卤素，环B为取代或未取代的碳环或取代或未取代的杂环，或其药学上可接受的盐。
• OXAZINE DERIVATIVES AND A PHARMACEUTICAL COMPOSITION FOR INHIBITING BACE1 CONTAINING THEM
  申请人：Masui Moriyasu

  公开号：US20140051691A1

  公开（公告）日：2014-02-20

  The present invention provides a compound of formula (I): wherein —X═ is —CR 7 ═ or —N═, ring B is a substituted or unsubstituted carbocycle or a substituted or unsubstituted heterocycle, R 1 is substituted or unsubstituted alkyl or the like, R 2 a and R 2 b are each independently hydrogen, substituted or unsubstituted alkyl or the like, R 3 and R 4 are each independently hydrogen, halogen, substituted or unsubstituted alkyl or the like, R 5 is hydrogen, substituted or unsubstituted alkyl or the like, each R 6 is independently halogen, hydroxy, substituted or unsubstituted alkyl or the like, R 7 is hydrogen, halogen, hydroxy, substituted or unsubstituted alkyl or the like, p is an integer of 0 to 3, or a pharmaceutically acceptable salt thereof which has an effect of inhibiting amyloid β production, especially an effect of inhibiting BACE1, and which is useful as a therapeutic or prophylactic agent for diseases induced by production, secretion and/or deposition of amyloid β proteins.

  本发明提供了一种化合物的公式(I)：其中—X═是—CR7═或—N═，环B是取代或未取代的碳环或取代或未取代的杂环，R1是取代或未取代的烷基或类似物，R2和R2'分别独立地是氢、取代或未取代的烷基或类似物，R3和R4分别独立地是氢、卤素、取代或未取代的烷基或类似物，R5是氢、取代或未取代的烷基或类似物，每个R6独立地是卤素、羟基、取代或未取代的烷基或类似物，R7是氢、卤素、羟基、取代或未取代的烷基或类似物，p是0到3的整数，或其在药学上可接受的盐，具有抑制淀粉样蛋白β产生的作用，特别是抑制BACE1的作用，并且可用作由淀粉样蛋白β蛋白的产生、分泌和/或沉积引起的疾病的治疗或预防剂。
• [EN] DIHYDROTHIAZINE AND DIHYDROOXAZINE DERIVATIVES HAVING BACE1 INHIBITORY ACTIVITY<br/>[FR] DÉRIVÉS DE DIHYDROTHIAZINE ET DE DIHYDROOXAZINE PRÉSENTANT UNE ACTIVITÉ INHIBITRICE DE BACE1
  申请人：SHIONOGI & CO

  公开号：WO2015156421A1

  公开（公告）日：2015-10-15

  The present invention provides a compound which has an effect of inhibiting amyloid β production, especially an effect of inhibiting BACE1, and which is useful as a therapeutic or phylactic agent for diseases induced by production, secretion and/or deposition of amyloid β proteins. A compound of the formula (I) wherein X is -S- or -O-, R3a is alkyl, haloalkyl or the like, R2a is H, halogen, alkyloxy, haloalkyloxy or the like, R2b is H or the like, R3b is H or alkyl, ring A and ring B is each independently a substituted or unsubstituted aromatic carbocycle, a substituted or unsubstituted aromatic heterocycle or the like, and R1 is substituted or unsubstituted alkyl or the like, or a pharmaceutically acceptable salt thereof.

  本发明提供了一种具有抑制淀粉样蛋白β产生作用的化合物，特别是抑制BACE1的作用，并且作为治疗或预防通过淀粉样蛋白β蛋白的产生、分泌和/或沉积引起的疾病的药物或预防剂而有用。其中化合物的结构式（I）中，X为-S-或-O-，R3a为烷基、卤代烷基或类似物，R2a为H、卤素、烷氧基、卤代烷氧基或类似物，R2b为H或类似物，R3b为H或烷基，环A和环B分别独立地为取代或未取代的芳香环烃、取代或未取代的芳香杂环或类似物，R1为取代或未取代的烷基或类似物，或其药学上可接受的盐。
• DIHYDROOXAZINE OR OXAZEPINE DERIVATIVES HAVING BACE1 INHIBITORY ACTIVITY
  申请人：SHIONOGI & CO., LTD.

  公开号：US20150266865A1

  公开（公告）日：2015-09-24

  The present invention provides a compound which has an effect of inhibiting amyloid β production, especially an effect of inhibiting BACE1, and which is useful as a therapeutic or prophylactic agent for diseases induced by production, secretion and/or deposition of amyloid β proteins. A compound of the formula (I): wherein X is —C(R 3a )(R 3b )—, —C(R 3a )(R 3b )—C(R 3c )(R 3d )— or —C(R 3a )═C(R 3c )—, R 1 is substituted or unsubstituted alkyl or the like, R 2a , R 2b , R 3a , R 3b , R 3c and R 3d are each independently hydrogen, halogen or the like, R 4 is hydrogen or halogen, Ring B is substituted or unsubstituted carbocycle or a substituted or unsubstituted heterocycle, or a pharmaceutically acceptable salt thereof.

  本发明提供了一种化合物，具有抑制淀粉样蛋白β产生的作用，特别是抑制BACE1的作用，并且可用作治疗或预防由淀粉样蛋白β蛋白的产生、分泌和/或沉积引起的疾病的药物。化合物的公式（I）如下：其中X为—C（R3a）（R3b）—，—C（R3a）（R3b）C（R3c）（R3d）—或—C（R3a）═C（R3c）—，R1为取代或未取代的烷基或类似物，R2a，R2b，R3a，R3b，R3c和R3d分别独立地为氢、卤素或类似物，R4为氢或卤素，环B为取代或未取代的碳环或取代或未取代的杂环，或其药学上可接受的盐。
• OXAZINE DERIVATIVE AND BACE 1 INHIBITOR CONTAINING SAME
  申请人：Shionogi & Co., Ltd.

  公开号：EP2703399A1

  公开（公告）日：2014-03-05

  The present invention provides a compound of formula (I): wherein -X= is -CR7= or -N=, ring B is a substituted or unsubstituted carbocycle or a substituted or unsubstituted heterocycle, R1 is substituted or unsubstituted alkyl or the like, R2a and R2b are each independently hydrogen, substituted or unsubstituted alkyl or the like, R3 and R4 are each independently hydrogen, halogen, substituted or unsubstituted alkyl or the like, R5 is hydrogen, substituted or unsubstituted alkyl or the like, each R6 is independently halogen, hydroxy, substituted or unsubstituted alkyl or the like, R7 is hydrogen, halogen, hydroxy, substituted or unsubstituted alkyl or the like, p is an integer of 0 to 3, or a pharmaceutically acceptable salt thereof which has an effect of inhibiting amyloid β production, especially an effect of inhibiting BACE1, and which is useful as a therapeutic or prophylactic agent for diseases induced by production, secretion and/or deposition of amyloid β proteins.

  本发明提供了一种式 (I) 的化合物： 其中 -X=是-CR7=或-N=、 环 B 是取代或未取代的碳环或取代或未取代的杂环、 R1 是取代或未取代的烷基或类似物、 R2a 和 R2b 各自独立地是氢、取代或未取代的烷基或类似物、 R3 和 R4 各自独立地为氢、卤素、取代或未取代的烷基或类似物、 R5 是氢、取代或未取代的烷基或类似物、 每个 R6 独立地是卤素、羟基、取代或未取代的烷基或类似物，R7 是氢、卤素、羟基、取代或未取代的烷基或类似物、 p 是 0 至 3 的整数、 或其药学上可接受的盐，该盐具有抑制淀粉样蛋白 β 生成的作用，尤其是抑制 BACE1 的作用，可用作治疗或预防由淀粉样蛋白 β 生成、分泌和/或沉积诱发的疾病的药物。