2-(6,7-dimethoxy-3,4-dihydro-1H-isoquinolin-2-yl)-6,7-dimethoxy-quinolin-4-amine

2-(6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline-2-yl)-6,7-dimethoxyquinoline-4-amine

4-Amino-6,7-dimethoxy-2-[(1,2,3,4-tetrahydro-6,7-dimethoxyisoquinolin)-2-yl]quinoline