Using CCOC(=O)C(CC(=O)O)(C(=O)OCC)n1cccc1, O=C1CCC(=O)N1O to produce CCOC(=O)C(CC(N)=O)(C(=O)OCC)n1cccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.