Using O=C(Cl)Oc1ccccc1, CCCS(=O)(=O)Cc1csc(N)n1 to produce CCCS(=O)(=O)Cc1csc(NC(=O)Oc2ccccc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.