Using CN(C(=O)c1ccc2[nH]ncc2c1)C1CCN(Cc2ccccc2)CC1 to produce CN(C(=O)c1ccc2[nH]ncc2c1)C1CCNCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.