Using O=C(Nc1ccccc1)Oc1cccc2c1CC[C@H]1[C@H]2CCCN1Cc1ccccc1 to produce O=C(Nc1ccccc1)Oc1cccc2c1CC[C@@H]1NCCC[C@@H]21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.