Using CC(=O)OC(C)=O, COc1ccc(-c2cc3cccc(Cl)n3n2)cc1 to produce COc1ccc(-c2nn3c(Cl)cccc3c2C(C)=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.