Using COc1ccc(C=O)c(O)c1, CCOC(=O)C[P+](c1ccccc1)(c1ccccc1)c1ccccc1 to produce COc1ccc(C=CC(=O)O)c(O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.