Using CCOC(C)=O, Cc1nc(-c2ccc(C(F)(F)F)cc2)sc1CI to produce CCOC(=O)CCc1sc(-c2ccc(C(F)(F)F)cc2)nc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.