Using CS(N)(=O)=O, CC1(C)Cc2cc(Cl)cc(C(=O)O)c2NC1c1cccc(N2CCOCC2)c1 to produce CC1(C)Cc2cc(Cl)cc(C(=O)NS(C)(=O)=O)c2NC1c1cccc(N2CCOCC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.