Using CCOC(=O)CC(=O)c1ccccc1, CC(C)=NNC(C)(C)Cc1ccccc1 to produce CC(C)(Cc1ccccc1)N1N=C(c2ccccc2)CC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.