Using COC(=O)CCc1ccc(OCc2ccc(C(C)(C)C)c(-c3cc(OC)ccc3F)c2)cc1 to produce COc1ccc(F)c(-c2cc(COc3ccc(CCC(=O)O)cc3)ccc2C(C)(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.