Using CC(=O)OC(C)=O, O=C1OC(c2ccccc2)N=C1CCCNC(=O)c1ccccc1 to produce CC(=O)C(CCCNC(=O)c1ccccc1)NC(=O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.