Using N=C(N)N1CCC(CCC(=O)Oc2ccccc2C(=O)OCc2ccccc2)CC1 to produce N=C(N)N1CCC(CCC(=O)Oc2ccccc2C(=O)O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.