Using Nc1cc(Oc2ccc(NC(=O)NC(=O)Cc3cccc(OCc4ccccc4)c3)cc2F)ccn1 to produce Nc1cc(Oc2ccc(NC(=O)NC(=O)Cc3cccc(O)c3)cc2F)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.