1 4XK 2-[3-(tetrahydro-2h-pyran-4-yloxy)propyl]-1,2,3,4-tetrahydroisoquinolin-5-amine 1.000 2 4XM 2-[3-(tetrahydro-2h-pyran-4-yloxy)propyl]-1,2,3,4-tetrahydroisoquinolin-8-amine 0.909