Using COc1cc(C)cc(OC)c1OC, COc1cccc(C(F)(F)F)c1C(=O)O to produce COc1cc(C)c(C(=O)c2c(OC)cccc2C(F)(F)F)c(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.