Using Cc1c(NC(=O)OC(C)(C)C)ccc2[nH]c(=O)oc(=O)c12 to produce Cc1c(NC(=O)OC(C)(C)C)ccc(N)c1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.