Using CCCCc1ncc(C(=O)OCC)c(=O)n1Cc1ccc(-c2ccccc2-c2nnn[nH]2)cc1 to produce CCCCc1ncc(C(=O)O)c(=O)n1Cc1ccc(-c2ccccc2-c2nnn[nH]2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.