Using Cc1nn(Cc2c(Cl)cccc2Cl)c2cc(CC(=O)O)ccc12, CC(C)(C)OC(=O)NN to produce Cc1nn(Cc2c(Cl)cccc2Cl)c2cc(CC(=O)NNC(=O)OC(C)(C)C)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.