Using CCOC(=O)CC(=O)N(N=Cc1ccccc1)c1ccccc1C(=O)OC to produce CCOC(=O)c1c(O)c2ccccc2n(N=Cc2ccccc2)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.