Using C#CCO, COC(=O)c1cc(Br)c(C(=O)OC)c(Br)c1 to produce COC(=O)c1cc(C#CCO)c(C(=O)OC)c(C#CCO)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.