Using C#CCO, COc1cccc(-c2c(Br)sc3nc(C)cc(NS(=O)(=O)c4cccc(Cl)c4)c23)c1 to produce COc1cccc(-c2c(C#CCO)sc3nc(C)cc(NS(=O)(=O)c4cccc(Cl)c4)c23)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.