Using C#CC(C)(C)O, COc1ccc2c(OCc3nnc4ccc(Cl)nn34)ccnc2c1 to produce COc1ccc2c(OCc3nnc4ccc(C#CC(C)(C)O)nn34)ccnc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.