申请人:Pierre Fabre Medicament
公开号:US06303603B1
公开(公告)日:2001-10-16
The invention concerns novel 3-oxo-(2H)-1,2,4-triazine derivatives of general formula (I) in which R1 represents: hydrogen, when A is an optionally substituted nitrogen atom; a linear or branched 1-C4 alkyl group; a C1-C4phenyl alkyl group, the phenyl ring being optionally substituted by one or several groups such as C1-C4 alkyl, C1-C3 alkoxy, halogen, trifluoromethyl. R2 represents: hydrogen; a linear or branched C1-C4 alkyl radical; a C1-C4 phenyl or phenylalkyl group, the phenyl ring being optionally substituted by one or several groups such as C1-C4 alkyl, C1-C3 alkoxy, halogen, trifluoromethyl. A represents an oxygen atom or a nitrogen atom optionally NR3 substituted. R3 represents hydrogen or a methyl group. B represents a group such as (IIa) in which Ar itself represents an aromatic structure such as phenyl, pyridyl or pyrimidyl, optionally substituted by one or several groups such as C1-C3 alkyl, C1-C3 alkoxy, hydroxy, trifluoromethyl or halogen and n can be whole numbers ranging between 3 and 5; (IIb) in which Ar is as defined in formula (IIa) and m can be a whole number ranging between 1 and 2; (IIc) in which R4 represents hydrogen or a C1-C3 alkyl group and n can be whole numbers ranging between 3 and 5.
本发明涉及通式(I)的新型3-氧代-(2H)-1,2,4-三嗪衍生物,其中R1代表:当A为可选择性取代的氮原子时,氢;线性或支链的C1-C4烷基;C1-C4苯基烷基,苯环可选择性地被一个或多个如C1-C4烷基、C1-C3烷氧基、卤素、三氟甲基的基团取代。R2代表:氢;线性或支链的C1-C4烷基;C1-C4苯基或苯基烷基,苯环可选择性地被一个或多个如C1-C4烷基、C1-C3烷氧基、卤素、三氟甲基的基团取代。A代表氧原子或可选择性NR3取代的氮原子。R3代表氢或甲基。B代表如(IIa)的基团,其中Ar本身代表如苯基、吡啶基或嘧啶基的芳香结构,可选择性地被一个或多个如C1-C3烷基、C1-C3烷氧基、羟基、三氟甲基或卤素的基团取代,n可以是3至5的整数;(IIb)中Ar的定义同(IIa),m可以是1至2的整数;(IIc)中R4代表氢或C1-C3烷基,n可以是3至5的整数。