Using O=C(O)c1ccc(N2CCN(c3nnc(Cc4ccc(F)cc4)c4ccccc34)CC2)nc1, CNCCO to produce CN(CCO)C(=O)c1ccc(N2CCN(c3nnc(Cc4ccc(F)cc4)c4ccccc34)CC2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.