Using CC=O, O=C(Nc1cccc(C(=O)C2CCNCC2)n1)c1c(F)cc(F)cc1F to produce CCN1CCC(C(=O)c2cccc(NC(=O)c3c(F)cc(F)cc3F)n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.