Using COc1cc(F)ccc1-c1ccc2c(c1COC(=O)c1ccc(OC(C)=O)cc1)C(C)=CC(C)(C)N2 to produce COc1cc(F)ccc1-c1ccc2c(c1COC(=O)c1ccc(O)cc1)C(C)=CC(C)(C)N2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.