Using O=C(Cl)CCCl, c1ccc2c(c1)Nc1ccccc1-c1ccccc1-2 to produce O=C(CCCl)N1c2ccccc2-c2ccccc2-c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.