Using CCOc1cccc(N)c1, CC(C)(C)C1=CC(=O)C=C(C(C)(C)C)C1=O to produce CCOc1cccc(N=C2C=C(C(C)(C)C)C(=O)C(C(C)(C)C)=C2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.