Using Cn1cc(CC(N)=O)c2ccccc21, CCOC(=O)C(=O)c1coc2ccccc12 to produce Cn1cc(C2=C(c3coc4ccccc34)C(=O)NC2=O)c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.