Using CCOC(=O)c1c(CC)ncnc1NCCc1ccc(CCSC)cc1, O=C(OO)c1cccc(Cl)c1 to produce CCOC(=O)c1c(CC)ncnc1NCCc1ccc(CCS(C)=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.