Suggested Reaction 1.14.17.-

Left

1-Benzopyrylium, 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-, chloride
+Vitamin C
+O2

Right

3,3',4,5,7-Pentahydroxyflavone
+Dehydroascorbate
+H2O

[BiSSCat | GREP ]