Using CC(=O)OC(C)=O, CCOc1ccccc1OCCN1CCC(CCC(=O)c2ccc(OC)c(N)c2)CC1 to produce CCOc1ccccc1OCCN1CCC(CCC(=O)c2ccc(OC)c(NC(C)=O)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.