Using CCOC(=O)c1c(Cl)cc(-c2c(CC)cccc2CC)nc1C, C[S-] to produce CCOC(=O)c1c(SC)cc(-c2c(CC)cccc2CC)nc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.