Using N#CCl, Cc1cc(C(C)(C)c2cc(C)c(O)c(C)c2)cc(C)c1O to produce Cc1cc(C(C)(C)c2cc(C)c(OC#N)c(C)c2)cc(C)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.