Using Cc1cc(N2CCOCC2)nc(NC2CN(C(=O)OCc3ccccc3)CC2F)n1 to produce Cc1cc(N2CCOCC2)nc(NC2CNCC2F)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.