Suggested Reaction 1.3.4.-

Left

(5Z,13E)-11alpha-Hydroxy-9,15-dioxoprost-13-enoate
+1,4-Dithiothreitol

Right

(5Z)-(15S)-11alpha-Hydroxy-9,15-dioxoprostanoate
+Oxidized dithiothreitol
[BiSSCat | GREP ]