Using c1ccc(COc2cncc(-c3ccc4[nH]nc(-c5ccc[nH]5)c4c3)c2)cc1 to produce Oc1cncc(-c2ccc3[nH]nc(-c4ccc[nH]4)c3c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.