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6-氟-2-吡嗪甲酰胺 | 356783-47-6

中文名称
6-氟-2-吡嗪甲酰胺
中文别名
——
英文名称
favipiravir
英文别名
6-fluoro-2-pyrazinecarboxamide;6-Fluoro-pyrazine-2-carboxylic acid amide;6-fluoropyrazine-2-carboxamide
6-氟-2-吡嗪甲酰胺化学式
CAS
356783-47-6
化学式
C5H4FN3O
mdl
MFCD18968606
分子量
141.105
InChiKey
HWULEHIEUIJINT-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    -0.2
  • 重原子数:
    10
  • 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:
    68.9
  • 氢给体数:
    1
  • 氢受体数:
    4

安全信息

  • 海关编码:
    2934999090

反应信息

  • 作为反应物:
    描述:
    6-氟-2-吡嗪甲酰胺 在 sodium hydroxide 作用下, 反应 1.0h, 生成 法匹拉韦杂质11 、 formamide
    参考文献:
    名称:
    Structural Elucidation of Alkali Degradation Impurities of Favipiravir from the Oral Suspension: UPLC-TQ-ESI-MS/MS and NMR
    摘要:
    一种新的稳定性指示、反相、高效液相色谱(RP-HPLC)方法已开发并验证,用于测定口服悬浊液中的法匹拉韦。在Zorbax Eclipse Plus C18柱(5 μm粒径,150 mm长度×4.6 mm直径)上实现了法匹拉韦及其降解产物的有效分离。移动相由5 mM磷酸盐缓冲液(pH 3.5)和甲醇以75:25的体积比混合制备,以1.0 mL/min的流速输送。使用光电二极管阵列检测器在322 nm波长下监测洗脱物。通过在各种应力条件下进行强制降解研究,如酸性、碱性、氧化、热和光降解,评估了该方法的稳定性指示性质。在碱性应力降解条件下观察到了显著的降解。在各种应力条件下生成的降解产物与法匹拉韦峰良好分离。此外,使用UPLC-ESI-TQ-MS/MS和NMR鉴定了在碱性应力条件下形成的主要降解产物。根据ICH Q2(R1)指南要求进行了方法验证。该方法简单、准确、稳健、可靠,适用于法匹拉韦口服悬浊液的常规质量控制分析。
    DOI:
    10.3390/molecules27175606
  • 作为产物:
    描述:
    法匹拉韦杂质6 在 sodium chloride 作用下, 以 盐酸乙酸乙酯 为溶剂, 生成 6-氟-2-吡嗪甲酰胺
    参考文献:
    名称:
    Novel pyrazine derivatives or salts thereof, pharmaceutical composition containing the same, and production intermediates thereof
    摘要:
    具有通式[1]所示的吡嗪衍生物及其盐,其中变量如说明书中所定义,具有优异的抗病毒活性,可作为治疗病毒感染的治疗剂。此外,具有通式[2]所示的氟吡嗪-酰胺衍生物及其盐,其中变量如说明书中所定义,可作为制备通式[1]化合物的中介体,以及作为制备具有抗病毒活性的氟吡嗪-酰胺衍生物的中介体,其中一个典型例子是具有抗病毒活性的6-氟-3-羟基-2-吡嗪酰胺。
    公开号:
    US20030130213A1
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文献信息

  • Pyrazine derivatives or salts thereof, pharmaceutical composition containing the same, and production intermediates thereof
    申请人:Toyama Chemical Co., Ltd.
    公开号:US06800629B2
    公开(公告)日:2004-10-05
    Pyrazine derivatives represented by general formula [1]: wherein the variables are as defined in the specification, or salts thereof have an excellent antiviral activity and are useful as a therapeutic agent for treating viral infections. Further, fluoropyrazine-carboxamide derivatives represented by general formula [2]: wherein the variables are as defined in the specification, or salts thereof are useful as an intermediate for production of the compounds of general formula [1], and as an intermediate for production of the fluoropyrazine-carboxamide derivatives of which one typical example is 6-fluoro-3-hyroxy-2-pyrazine-carboxamide having an antiviral activity.
    一般式[1]所表示的吡嗪衍生物:其中变量如规范中所定义,或其盐具有优异的抗病毒活性,可用作治疗病毒感染的治疗剂。此外,一般式[2]所表示的氟吡嗪羧酰胺衍生物:其中变量如规范中所定义,或其盐,可用作一般式[1]化合物的生产中间体,以及用作生产氟吡嗪羧酰胺衍生物的中间体,其中一个典型例子是具有抗病毒活性的6-氟-3-羟基-2-吡嗪羧酰胺。
  • Structural Elucidation of Alkali Degradation Impurities of Favipiravir from the Oral Suspension: UPLC-TQ-ESI-MS/MS and NMR
    作者:Ravi Patel、Abhishek Dube、Ravisinh Solanki、Dignesh Khunt、Shalin Parikh、Vijayabhaskarreddy Junnuthula、Sathish Dyawanapelly
    DOI:10.3390/molecules27175606
    日期:——

    A novel stability-indicating, reversed-phase, high-performance liquid chromatography (RP-HPLC) method was developed and validated for the determination of favipiravir in an oral suspension. The effective separation of favipiravir and its degradation products was achieved on a Zorbax Eclipse Plus C18 column (5 μm particle size, 150 mm length × 4.6 mm diameter). The mobile phase was prepared by mixing 5 mM of phosphate buffer (pH 3.5) and methanol in a 75:25 v/v ratio delivered at a 1.0 mL/min flow rate. The eluents were monitored using a photodiode array detector at a wavelength of 322 nm. The stability-indicating nature of this method was evaluated by performing force degradation studies under various stress conditions, such as acidic, alkali, oxidative, thermal, and photolytic degradation. Significant degradation was observed during the alkali stress degradation condition. The degradation products generated during various stress conditions were well separated from the favipiravir peak. In addition, the major degradation product formed under alkali stress conditions was identified using UPLC-ESI-TQ-MS/MS and NMR. Method validation was performed according to the ICH Q2 (R1) guideline requirements. The developed method is simple, accurate, robust, and reliable for routine quality control analysis of favipiravir oral suspensions.

    一种新的稳定性指示、反相、高效液相色谱(RP-HPLC)方法已开发并验证,用于测定口服悬浊液中的法匹拉韦。在Zorbax Eclipse Plus C18柱(5 μm粒径,150 mm长度×4.6 mm直径)上实现了法匹拉韦及其降解产物的有效分离。移动相由5 mM磷酸盐缓冲液(pH 3.5)和甲醇以75:25的体积比混合制备,以1.0 mL/min的流速输送。使用光电二极管阵列检测器在322 nm波长下监测洗脱物。通过在各种应力条件下进行强制降解研究,如酸性、碱性、氧化、热和光降解,评估了该方法的稳定性指示性质。在碱性应力降解条件下观察到了显著的降解。在各种应力条件下生成的降解产物与法匹拉韦峰良好分离。此外,使用UPLC-ESI-TQ-MS/MS和NMR鉴定了在碱性应力条件下形成的主要降解产物。根据ICH Q2(R1)指南要求进行了方法验证。该方法简单、准确、稳健、可靠,适用于法匹拉韦口服悬浊液的常规质量控制分析。
  • Novel pyrazine derivatives or salts thereof, pharmaceutical composition containing the same, and production intermediates thereof
    申请人:Toyama Chemical Co., Ltd.
    公开号:US20030130213A1
    公开(公告)日:2003-07-10
    Pyrazine derivatives represented by general formula [1]: 1 wherein the variables are as defined in the specification, or salts thereof have an excellent antiviral activity and are useful as a therapeutic agent for treating viral infections. Further, fluoropyrazine-carboxamide derivatives represented by general formula [2]: 2 wherein the variables are as defined in the specification, or salts thereof are useful as an intermediate for production of the compounds of general formula [1], and as an intermediate for production of the fluoropyrazine-carboxamide derivatives of which one typical example is 6-fluoro-3-hyroxy-2-pyrazine-carboxamide having an antiviral activity.
    具有通式[1]所示的吡嗪衍生物及其盐,其中变量如说明书中所定义,具有优异的抗病毒活性,可作为治疗病毒感染的治疗剂。此外,具有通式[2]所示的氟吡嗪-酰胺衍生物及其盐,其中变量如说明书中所定义,可作为制备通式[1]化合物的中介体,以及作为制备具有抗病毒活性的氟吡嗪-酰胺衍生物的中介体,其中一个典型例子是具有抗病毒活性的6-氟-3-羟基-2-吡嗪酰胺。
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