Using CCc1cc(-c2ccc(C(=O)N3CCN(c4ccccc4)CC3)o2)c(C)nc1OC to produce CCc1cc(-c2ccc(C(=O)N3CCN(c4ccccc4)CC3)o2)c(C)[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.