Using Cc1nc(-c2ccc(C(F)(F)F)cc2)oc1CCl, CCOC(=O)COc1ccc(S)cc1C to produce CCOC(=O)COc1ccc(SCc2oc(-c3ccc(C(F)(F)F)cc3)nc2C)cc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.