Suggested Reaction 2.1.1.-

Left

1-Benzopyrylium, 3,5,7-trihydroxy-2-(3,4,5-trihydroxyphenyl)-, chloride
+S-Adenosyl-L-methionine

Right

Petunidin
+S-Adenosyl-L-homocysteine

[BiSSCat | GREP ]