M. Treu, U. Jordis:
"4a,5,9,10,11,12-Hexahydro-6H-benzo[a]cyclohepta[hi]benzofuran - synthesis of unnatural galanthamine analogs";
Molecules, 7 (4) (2002), 374 - 381.
The synthesis of an unnatural carbocyclic galanthamine analog, I, via an oxidative tandem cyclization mediated by K3[Fe(CN)6] is reported.