| abstract |
There are provided compounds of Formula (I) wherein three of A1, A2, A3, and A4 represent CH and one of A1, A2, A3, and A4 represents CR1; R1 represents SO2R2 or NHCOR2 wherein R2 represents C1-C6 alkyl optionally substituted by one or more halogen, hydroxyl or alkoxy groups; R9 represents C6-C10 aryl; or a pharmaceutically acceptable salt thereof and method of treatment of Duchenne muscular dystrophy. |