Using COC(=O)C(C)Br, COc1nc(C)cnc1N(C(=O)OCC(C)C)S(=O)(=O)c1cccnc1-c1ccc(O)cc1 to produce COC(=O)C(C)Oc1ccc(-c2ncccc2S(=O)(=O)N(C(=O)OCC(C)C)c2ncc(C)nc2OC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.