Using CCOc1ccc(C(=O)O)c(F)c1F, CCC[C@H]1CC[C@H](c2ccc(O)c(F)c2F)CC1 to produce CCC[C@H]1CC[C@H](c2ccc(OC(=O)c3ccc(OCC)c(F)c3F)c(F)c2F)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.