Using CCn1cc(-c2cc(Oc3ccc(-c4cnc(NC(C)C)nc4OC)nc3C)ccn2)cn1 to produce CCn1cc(-c2cc(Oc3ccc(-c4cnc(NC(C)C)[nH]c4=O)nc3C)ccn2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.