Suggested Reaction 1.14.16.-

Left

N-Glycoloyl-neuraminate
+6,7-Dihydrobiopterin
+H2O

Right

5-Acetamido-3,5-dideoxy-D-glycero-D-galacto-2-nonulosonic acid
+2-Amino-6-(1,2-dihydroxypropyl)-5,6,7,8-tetrahydoro-4(1H)- pteridinone
+O2
[BiSSCat | GREP ]