Using CCCO[C@@H]1CN(c2ncc(C(=O)OCC)s2)CC[C@@H]1NC(=O)c1nc(Cl)c(CC)[nH]1 to produce CCCO[C@@H]1CN(c2ncc(C(=O)O)s2)CC[C@@H]1NC(=O)c1nc(Cl)c(CC)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.