Using COC(=O)c1ccc2ncn(-c3ccc(SC)cc3)c2c1, O=C(OO)c1cccc(Cl)c1 to produce COC(=O)c1ccc2ncn(-c3ccc(S(C)=O)cc3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.