Suggested Reaction 1.1.1.-

Left

(1S,3R,4S)-3,4-Dihydroxycyclohexane-1-carboxylate
+NAD+

Right

(1S,4S)-4-Hydroxy-3-oxocyclohexane-1-carboxylate
+NADH
+H+

[BiSSCat | GREP ]