Using CCOC(=O)CCc1cnn(C)c1NC(c1ccccc1)(c1ccccc1)c1ccccc1 to produce Cn1ncc(CCC(=O)O)c1NC(c1ccccc1)(c1ccccc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.