1′-(6,7-Dimethoxy-3,3-dimethyl-3,4-dihydro-1-isoquinolinyl)-4′H-spiro[cyclohexane-1,3′-isoquinoline]

1′-(6,7-Dimethoxy-3,3-dimethyl-3,4-dihydro-1-isochinolinyl)-4′H-spiro[cyclohexane-1,3′-isoquinoline]

1′-(6,7-Diméthoxy-3,3-diméthyl-3,4-dihydro-1-isoquinoléinyl)-4′H-spiro[cyclohexane-1,3′-isoquinoline]

1′-(6,7-Dimethoxy-3,3-dimethyl-3,4-dihydro-1-isoquinolinyl)-4′H-spiro[cyclohexane-1,3′-isoquinoline]

Spiro[cyclohexane-1,3′(4′H)-isoquinoline], 1′-(3,4-dihydro-6,7-dimethoxy-3,3-dimethyl-1-isoquinolinyl)-

1′-(6,7-dimethoxy-3,3-dimethyl-3,4-dihydroisoquinolin-1-yl)-4′H-spiro[cyclohexane-1,3′-isoquinoline]

6,7-dimethoxy-3,3-dimethyl-1-spiro[3,4-dihydroisoquinoline-3,1′-cyclohexane]yl-3,4-dihydroisoquinoline