Using CCOC(=O)CBr, COC(=O)C(CO)NS(=O)(=O)c1ccc(OC)cc1 to produce CCOC(=O)CN(C(CO)C(=O)OC)S(=O)(=O)c1ccc(OC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.