Using O=C=Nc1ccccc1, O=C(NN1CCNCC1)c1ccc(F)cc1 to produce O=C(NN1CCN(C(=O)Nc2ccccc2)CC1)c1ccc(F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.