Using CCCC(C(=O)OC)c1c(-c2ccc(C)cc2)nc(N2CCCCC2)[nH]c1=O to produce CCCC(C(=O)O)c1c(-c2ccc(C)cc2)nc(N2CCCCC2)[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.