Using COc1cccc(S)c1, O=C(O)c1c(Cl)ccc([N+](=O)[O-])c1Cl to produce COc1ccc2c(=O)c3c(Cl)ccc([N+](=O)[O-])c3sc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.