Using O=C(c1ccccc1Nc1ccc2[nH]ncc2c1)N1CCN(Cc2ccccc2)CC1 to produce O=C(c1ccccc1Nc1ccc2[nH]ncc2c1)N1CCNCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.