Using CC(=O)OC(C)=O, CCOC(=O)CCN(C)C(=O)c1ccc(NC(c2oc3ccc(N)cc3c2C)C2CCCCC2)cc1 to produce CCOC(=O)CCN(C)C(=O)c1ccc(NC(c2oc3ccc(NC(C)=O)cc3c2C)C2CCCCC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.