Using O=C(Cl)CCCCl, Cc1nnc2ccc(-c3cccc(N)c3)nn12 to produce Cc1nnc2ccc(-c3cccc(N4CCCC4=O)c3)nn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.