Using CCCCCc1ccc(C=CC(=O)Nc2cccc3c2OC(c2nnn[nH]2)CO3)cc1 to produce CCCCCc1ccc(CCC(=O)Nc2cccc3c2OC(c2nnn[nH]2)CO3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.