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。