Using O=C([O-])[O-], COP(=O)(CNS(=O)(=O)c1cc2ccccc2s1)OC to produce COP(=O)(CN(C)S(=O)(=O)c1cc2ccccc2s1)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.