Suggested Reaction 1.5.5.-

Left

6-(D-erythro-1,2,3-Trihydroxypropyl)pterin
+CoQH2

Right

2-Amino-4-hydroxy-6-(D-erythro-1,2,3-trihydroxypropyl)-7,8- dihydropteridine
+CoQ

[BiSSCat | GREP ]