Using O=C(Nc1cccc2[nH]ncc12)NC1CCc2c1cccc2N1CCCCC1 to produce O=C(Nc1cccc2[nH]ncc12)N[C@H]1CCc2c1cccc2N1CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.