Using Cc1ccc(C=O)cc1F, NC1CCN(CCn2c(=O)cnc3ccc(F)cc32)CC1 to produce Cc1ccc(CNC2CCN(CCn3c(=O)cnc4ccc(F)cc43)CC2)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.