Using Cc1cc(C(=O)O)c(NC(=O)OC(C)(C)C)s1, Nc1cccc(Cl)c1 to produce Cc1cc(C(=O)Nc2cccc(Cl)c2)c(NC(=O)OC(C)(C)C)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.