Suggested Reaction 1.5.3.-

Left

2-Amino-4-hydroxy-6-(D-erythro-1,2,3-trihydroxypropyl)-7,8- dihydropteridine
+O2

Right

6-(D-erythro-1,2,3-Trihydroxypropyl)pterin
+H2O2

[BiSSCat | GREP ]