申请人:Ohrai Kazuhiko
公开号:US20080004262A1
公开(公告)日:2008-01-03
This invention relates to benzopyran derivatives of formula (I) or (II), or pharmaceutically acceptable salts thereof wherein R
1
and R
2
are independently of each other hydrogen atom, C
1-6
alkyl group or C
6-14
aryl group, R
3
is hydrogen atom or C
1-6
alkylcarbonyloxy group, or together with R
4
forms a bond, R
4
is hydrogen atom, or together with R
3
forms a bond, m is an integer of 0 to 4, n is an integer of 0 to 4, V is a single bond, CR
7
R
8
, NR
9
, O, S, SO or SO
2
, R
5
is hydrogen atom or C
1-6
alkyl group, R
6
is hydrogen atom, C
1-6
alkyl group, C
3-8
cycloalkyl group, C
3-8
cycloalkenyl group, amino group, C
1-6
alkylamino group, di-C
1-6
alkylamino group, C
6-14
arylamino group, C
2-9
heteroarylamino group, C
6-14
aryl group, C
2-9
heteroaryl group or C
2-9
heterocyclyl group, A is 5-, 6- or 7-member ring fused with benzene ring, as constituent atom of the ring, oxygen atom, nitrogen atom or sulfur atom may be contained in the number of 1 to 3 alone or in a combination thereof, the number of unsaturated bond in the ring is 1, 2 or 3 including an unsaturated bond of the benzene ring to be fused, carbon atoms constituting the ring may be carbonyl or thiocarbonyl. These compounds are useful as an anti-arrhythmic agent.
本发明涉及式(I)或(II)的苯并吡喃衍生物,或其药学上可接受的盐,其中R1和R2独立地为氢原子,C1-6烷基或C6-14芳基;R3为氢原子或C1-6烷基羰氧基,或与R4一起形成键;R4为氢原子,或与R3一起形成键;m为0至4的整数,n为0至4的整数,V为单键,CR7R8,NR9,O,S,SO或SO2;R5为氢原子或C1-6烷基,R6为氢原子,C1-6烷基,C3-8环烷基,C3-8环烯基,氨基,C1-6烷基氨基,二C1-6烷基氨基,C6-14芳基氨基,C2-9杂芳基氨基,C6-14芳基,C2-9杂芳基或C2-9杂环烷基;A为与苯环融合的5、6或7元环,作为环的组成原子,其中单独或组合存在1至3个氧原子、氮原子或硫原子,环中不饱和键的数量为1、2或3,包括与苯环融合的不饱和键,构成环的碳原子可以是羰基或硫代羰基。这些化合物可用作抗心律失常药物。