Using CCOC(=O)CC1CCC(c2ccc(-c3nnn(C)c3C(=O)OCc3ccccc3)cc2)CC1 to produce CCOC(=O)CC1CCC(c2ccc(-c3nnn(C)c3C(=O)O)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.