Using COC(=O)C(C)(C=O)NC(=O)OC(C)(C)C, CC(C#N)CC[P+](c1ccccc1)(c1ccccc1)c1ccccc1 to produce COC(=O)C(C)(/C=C\CC#N)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.