Suggested Reaction 1.1.1.-

Left

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

Right

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

[BiSSCat | GREP ]