3,4-Dimethoxybenzylidenaminoacetal

6,7-dimethoxy veratrylaminoacetaldehyde diethylacetal

2-(2-hydroxymethyl-4,5-dimethoxyphenyl)-3-(3,4-dimethoxyphenyl)-N-methylpropionamide

(+/-)dimethoxy-6,7 methyl-2 hydroxy-4 tetrahydro-1,2,3,4 isoquinoleine

benzylidene-3 dimethoxy-6,7 methyl-2 oxo-4 tetrahydroisoquinoleine