Using CC1(C)C2CC[C@]1(C)CNC2, O=C(O)CC1CCCCCCC1 to produce CC1(C)C2CC[C@]1(C)CN(C(=O)CC1CCCCCCC1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.