Using NNc1ccc(F)cn1, O=C(O)c1ccc(CN2CCOCC2)cc1 to produce O=C(NNc1ccc(F)cn1)c1ccc(CN2CCOCC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.