Using COCOc1cc2c(cc1C(=O)Nc1cc(F)c(C(=O)OC)c(F)c1)C(C)(C)CCC2(C)C to produce CC1(C)CCC(C)(C)c2cc(C(=O)Nc3cc(F)c(C(=O)O)c(F)c3)c(O)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.