Suggested Reaction 1.3.4.-

Left

1,2-Dihydroxy-7-hydroxymethylnaphthalene
+1,4-Dithiothreitol

Right

cis-1,2-Dihydroxy-1,2-dihydro-7-hydroxymethylnaphthalene
+Oxidized dithiothreitol

[BiSSCat | GREP ]