Suggested Reaction 1.1.1.-

Left

(5Z,13E)-(15S)-11alpha,15-Dihydroxy-9-oxoprost-13-enoate
+NAD+

Right

(5Z,13E)-11alpha-Hydroxy-9,15-dioxoprost-13-enoate
+NADH
+H+

[BiSSCat | GREP ]