1,2,4-triazolo[4,3-B]pyrido[3,2-D]pyridazine derivatives and pharmaceutical compositions containing them
申请人:ALMIRALL PRODESFARMA, S.A.
公开号:US20020183326A1
公开(公告)日:2002-12-05
Heterocyclic compounds of formula (I),
1
wherein R
1
represents a hydrogen atom or a —(CH
2
)
M
—Y group, wherein m is an integer from 0 to 4 and Y represents an alkyl, haloalkyl, alkoxy, alkoxycarbonyl, C
3
-C
7
cycloalkyl, norbornyl or phenylalkenyl group, or an aromatic group which aromatic group ˆ may optionally be substituted by one or more halogen atoms; R
2
represents an aromatic group which aromatic group may optionally be substituted by one or more halogen atoms or alkyl, alkoxy, C
3
-C
6
cycloalkoxy, methylenedioxy, nitro, dialkylamino or trifluoromethyl groups, and R
3
represents a hydrogen or halogen atom or an alkyl group, and pharmaceutically acceptable salts thereof, processes for preparing the same. The compounds are phosphodiesterase 4 inhibitors.
式(I)的杂环化合物、
1
其中 R
1
代表氢原子或-(CH
2
)
M
-Y基团,其中m为0至4的整数,Y代表烷基、卤代烷基、烷氧基、烷氧羰基、C
3
-C
7
环烷基、降冰片烷基或苯基烯基,或芳香基团,其中芳香基团 ˆ 可任选被一个或多个卤素原子取代; R
2
代表芳香基团,该芳香基团可选择被一个或多个卤素原子或烷基、烷氧基、 C
3
-C
6
环烷氧基、亚甲基二氧基、硝基、二烷基氨基或三氟甲基取代,而 R
3
代表氢原子、卤素原子或烷基,及其药学上可接受的盐,以及制备方法。这些化合物是磷酸二酯酶 4 抑制剂。