Using COc1cc(CCNC(=O)OC(C)(C)C)ccc1O, Fc1cccc(CCl)c1 to produce COc1cc(CCNC(=O)OC(C)(C)C)ccc1OCc1cccc(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.