13,13-dichloro-9,10-dimethoxy-5,6,12b,13-tetrahydro-8H-cyclopropa[3,4]isoquinolino[3,2-a][1,3]dioxolo[4,5-g]isoquinolin-8-one

1,3,4,9b-Tetrahydro-2H-6,8-dioxa-2a-aza-cyclobuta[a]cyclopenta[g]naphthalene 2a-oxide

6-hydroxy-8,9-methylenedioxy-1,2,3,4,5,6-hexahydro-3-benzazocine

7,8-methylenedioxy-1,4,5,9b-tetrahydro-2H-azeto<2,1-a>isoquinoline

N-(6-bromo-2,3-dimethoxybenzoyl)-8,9-methylenedioxy-6-oxo-1,2,3,4,5,6-hexahydro-3-benzazocine