2-Hydroxy-3-isobutyl-9,10-dimethoxy-6,7-dihydropyrido[2,1-a]isoquinolin-5-ium; 6,7-dihydro-2-hydroxy-9,10-dimethoxy-3-(2-methylpropyl)-Benzo[a]quinolizinium ; 2-Hydroxy-3-isobutyl-9,10-dimethoxy-6,7-dihydropyrido[2,1-a]isoquinolin-5-ium