Using CC(C)(C)c1ccc(C=O)cc1, CC(C)(C)OC(=O)COc1cccc(CN)c1 to produce CC(C)(C)OC(=O)COc1cccc(CNCc2ccc(C(C)(C)C)cc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.