Using COc1ccc(CNc2cc(C)nc3c2nc(C)n3-c2ccc(Cl)cc2Cl)cc1 to produce Cc1cc(N)c2nc(C)n(-c3ccc(Cl)cc3Cl)c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.