Suggested Reaction 1.3.4.-

Left

(all-E)-3,7-Dimethyl-9-(2,6,6-trimethyl-1,3-cyclohexadien-1-yl)- 2,4,6,8-nonatetraenal
+1,4-Dithiothreitol

Right

Retinal
+Oxidized dithiothreitol

[BiSSCat | GREP ]