Suggested Reaction 2.1.1.-

Left

(13aS)-5,8,13,13a-Tetrahydro-9,10-dimethoxy-6H-Benzo[g]-1,3- benzodioxolo[5,6-a]quinolizine
+S-Adenosyl-L-methionine

Right

(S)-N-Methylcanadine
+S-Adenosyl-L-homocysteine
+H+

[BiSSCat | GREP ]