Using O=C(O)c1ccsc1, COc1cc(C(C)C)c2c(c1)S(=O)(=O)N(CCl)C2=O to produce COc1cc(C(C)C)c2c(c1)S(=O)(=O)N(COC(=O)c1ccsc1)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.