Suggested Reaction 3.3.2.-

Left

(13aS)-5,8,13,13a-tetrahydro-3,9,10-trimethoxy-6H- Dibenzo[a,g]quinolizin-2-ol
+H2O

Right

(13aS)-5,8,13,13a-tetrahydro-3,10-dimethoxy-6H- dibenzo[a,g]quinolizine-2,9-diol
+Methanol

[BiSSCat | GREP ]