2,3,9,10-tetramethoxy-13-methyl-5,6-dihydroisoquinolino[2,1-b]isoquinolin-7-ium,iodide

2,3-dimethoxy-6,12b-dihydro-5H-isoindolo[1,2-a]isoquinolin-8-one

6,7-dimethoxy-2-methyl-3,4-dihydro-1H-isoquinoline

Crispine A

2-ethyl-6,7-dimethoxy-3,4-dihydroisoquinolin-2-ium,iodide