Using Brc1nccs1, C#Cc1cc(Cl)cc2nc(Cc3cc(C(C)(C)C)c(O)c(C(C)(C)C)c3)oc12 to produce C(#Cc1nccs1)c1nc2ccccc2o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.