630423-36-8

1,7-Dichloro-4-methoxyisoquinoline acts as a reagent in the synthesis and biological evaluations of P4-benzoxaborole-substituted macrocyclic inhibitors of HCV NS3 protease. Preparation, SAR of methoxyisoquinoline derivatives and discovery of asunaprevir (BMS-650032), an orally efficacious NS3 protease inhibitor for the treatment of hepatitis C virus infection.