Using COC(=O)[C@H]1CC[C@H](C(=O)O)CC1, O=C1CCC(=O)N1O to produce COC(=O)[C@H]1CC[C@H](C(=O)ON2C(=O)CCC2=O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.