Using COC(=O)c1cn(C2CCN(C(=O)OC(C)(C)C)CC2)c(=O)[nH]1 to produce CC(C)(C)OC(=O)N1CCC(n2cc(C(=O)O)[nH]c2=O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.