hydrohydrastinine

6-methyl-7,8-dihydro-5H-[1,3]dioxolo[4,5-g]isoquinoline

6-Methyl-5,6,7,8-tetrahydro-1,3-dioxolo[4,5-g]isoquinoline

5,6,7,8-Tetrahydro-6-methyl-1,3-dioxolo[4,5-g]isoquinoline

1,2,3,4-Tetrahydro-2-methyl-6,7-methylenedioxyisoquinoline