Using COC(=O)C[P+](c1ccccc1)(c1ccccc1)c1ccccc1, N#CC1(c2cc(Br)cc(C=O)c2)CC1 to produce COC(=O)/C=C/c1cc(Br)cc(C2(C#N)CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.