Using CCOC(=O)N1C(=O)c2ccccc2C1=O, COc1ccc(CC(C)N)cc1OC to produce COc1ccc(CC(C)N2C(=O)c3ccccc3C2=O)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.