Using CCOC(=O)c1ccc(OC)c(Sc2c(C)[nH]c3cc(Cl)ccc23)c1, Brc1cccnc1 to produce CCOC(=O)c1ccc(OC)c(Sc2c(C)n(-c3cccnc3)c3cc(Cl)ccc23)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.