Using CCCCCI, COC(=O)CCSc1nc2ccc(C(F)(F)F)cc2cc1C(=O)NCc1cccs1 to produce CCCCCSc1nc2ccc(C(F)(F)F)cc2cc1C(=O)NCc1cccs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.