申请人:——
公开号:US20040152763A1
公开(公告)日:2004-08-05
This invention relates to benzopyran derivatives of the formula (1) or the formula (2) wherein R
1
and R
2
represent independently of each other hydrogen atom or C
1-6
alkyl group, R
3
represents hydroxyl group or C
1-6
alkylcarbonyloxy group, R
4
represents hydrogen atom or C
1-6
alkyl group, R
5
represents C
1-6
alkyl group substituted with C
6-14
aryl group or heteroaryl group, R
6
represents C
1-6
alkyl group, C
1-6
alkoxy group, halogen atom, nitro group, C(O)NH
2
, C(O)NHR
8
or C(O)NR
8
R
9
, or pharmaceutically acceptable salts thereof. These compounds are useful as an antiarrhythmic agent.
1
本发明涉及式(1)或式(2)的苯并吡喃衍生物,其中R1和R2独立地表示氢原子或C1-6烷基,R3表示羟基或C1-6烷基羧酸酯基,R4表示氢原子或C1-6烷基,R5表示C1-6烷基,该烷基被C6-14芳基或杂芳基取代,R6表示C1-6烷基,C1-6烷氧基,卤素原子,硝基,C(O)NH2,C(O)NHR8或C(O)NR8R9,或其药学上可接受的盐。这些化合物可用作抗心律失常剂。