Using CC(C)(C)OC(=O)N[C@H](C(=O)O)c1ccccc1, On1nnc2ccccc21 to produce CC(C)(C)OC(=O)N[C@H](C(N)=O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.