Using COC(=O)C1CC(c2ccc(C(C)(F)F)cc2)CN(C(=O)N2CCSCC2)C1 to produce CC(F)(F)c1ccc(C2CC(C(=O)O)CN(C(=O)N3CCSCC3)C2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.