Using CCOC(=O)c1cnn(-c2cc(N(C)C(=O)OC(C)(C)C)ncn2)c1N to produce CN(C(=O)OC(C)(C)C)c1cc(-n2ncc(C(=O)O)c2N)ncn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.