1-phenyl-1 2 3 4-tetrahydroisoquinoline July 8, 2019 16 32 64 128 (s)-1-phenyl-1 2 3 4-tetrahydroisoquinoline N phenyl 1 2 3 4 tetrahydroisoquinoline 2-phenyl-1 2 3 4-tetrahydroisoquinoline 1 2 3 4-tetrahydroquinoline 1 2 3 4-tetrahydroquinoxaline