Using CC(C)(C)c1ccc(N=C=O)cc1, COC(=O)C(C)(C)N to produce CC1(C)NC(=O)N(c2ccc(C(C)(C)C)cc2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.