Using Cc1cc(C)cc(-c2[nH]c3ccc(O)cc3c2CCN2C(=O)c3ccccc3C2=O)c1 to produce Cc1cc(C)cc(-c2[nH]c3ccc(O)cc3c2CCN)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.