Using CCOC(=O)c1csc(CN(C)S(=O)(=O)c2ccc(Br)cc2)n1 to produce CN(Cc1nc(C(=O)O)cs1)S(=O)(=O)c1ccc(Br)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.