Using CCOC(=O)C1(CCCCCCCCCCCCC2(C(N)=O)CC2)CC1 to produce NC(=O)C1(CCCCCCCCCCCCC2(C(=O)O)CC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.