Suggested Reaction 1.1.4.-

Left

5,6,8,14-Tetradehydro-4-hydroxy-3,6-dimethoxy-17-methyl-morphinan-7- one
+1,4-Dithiothreitol

Right

5,6,8,14-Tetradehydro-3,6-dimethoxy-17-methyl-morphinan-4,7-diol
+Oxidized dithiothreitol

[BiSSCat | GREP ]