Using CCc1c(OC)nc(OC)nc1C(=O)c1cc(C)cc(C=CC#N)c1 to produce CCc1c(C(=O)c2cc(C)cc(C=CC#N)c2)[nH]c(=O)[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.