Using CC(C)(C)OC(=O)OC(C)(C)C, CCC(=O)c1c(-c2ccccc2)c2cc(Br)ccc2c(=O)n1Cc1ccc(S(N)(=O)=O)cc1 to produce CCC(=O)c1c(-c2ccccc2)c2cc(Br)ccc2c(=O)n1Cc1ccc(S(=O)(=O)NC(=O)OC(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.