Using O=C1CN(C(=O)OCc2ccccc2)CCN1, Clc1ccc2cc(CBr)ccc2n1 to produce O=C1CN(C(=O)OCc2ccccc2)CCN1Cc1ccc2nc(Cl)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.