Using COc1cc(Nc2ncnc(Cl)n2)cc(OC)c1OC, O=C1Cc2ccccc2N1 to produce COc1cc(Nc2ncnc(-c3c(O)[nH]c4ccccc34)n2)cc(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.