Using COc1ncc(N)cc1F, COCCNc1nc(C)nc(-c2cc(Cl)cnc2F)n1 to produce COCCNc1nc(C)nc(-c2cc(Cl)cnc2Nc2cnc(OC)c(F)c2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.