Disclosed is a compound which is useful in preventing and treating cardiac arrhythmia such as atrial fibrillation. A compound represented by formula (1) or a pharmaceutically acceptable salt of the same.
In formula (1), ring X represents benzene or pyridine; R
1
represents an optionally substituted alkyl group; R
2
represents an optionally substituted aryl group, an optionally substituted heterocyclic group, an optionally substituted arylalkyl group or an optionally substituted heterocyclic group-substituted alkyl group; R
3
, R
4
, R
5
, R
6
, R
7
, R
8
and R
9
represent each hydrogen or an alkyl group, provided that R
3
and R
5
may be bonded to each other to form, together with the carbon atom adjacent thereto, a cycloalkyl group; and m represents 0 or 1.
A compound of the formula:
wherein ring X is benzene or pyridine; R
1
is substituted alkyl; R
2
is optionally substituted aryl or optionally substituted heterocyclic group; R
3
is hydrogen or alkyl; R
4
is hydrogen, halogen or alkyl; R
5
is hydrogen or alkyl; R
6
and R
7
are the same or different and each hydrogen or halogen, or a pharmaceutically acceptable salt thereof, which is useful as I
Kur
blocker effective for preventing or treating cardiac arrhythmia such as atrial fibrillation.
US8022059B2
申请人:——
公开号:US8022059B2
公开(公告)日:2011-09-20
Substituted 1h-pyrazolo[3,4-b] pyridine derivatives active as kinase inhibitors