Suggested Reaction 1.3.5.-

Left

5-Heptenoic acid, 7-[3,5-dihydroxy-2(3-hydroxy-1-octenyl)cyclopentyl]-, stereoisomer
+CoQH2

Right

(13E,15S)-9alpha,11alpha-9,11,15-Trihydroxyprost-13-en-1-oic acid
+CoQ

[BiSSCat | GREP ]