Using O=C1CNCCN1Cc1ccccc1, Clc1nnc(Cl)c2ccccc12 to produce O=C1CN(c2nnc(Cl)c3ccccc23)CCN1Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.