Using C#CCCO, Cn1cc(C(=O)NCc2ccc(Cl)cc2)c(=O)c2cc(Br)oc21 to produce Cn1cc(C(=O)NCc2ccc(Cl)cc2)c(=O)c2cc(C#CCCO)oc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.