Suggested Reaction 3.3.2.-

Left

13,14-Dihydro-5-methoxy-13-methyl-[1,3]benzodioxolo[5,6-c]-1,3- dioxolo[4,5-i]phenanthridine
+H2O

Right

10-Hydroxydihydrosanguinarine
+Methanol

[BiSSCat | GREP ]