Using O=C(C[PH](c1ccccc1)(c1ccccc1)c1ccccc1)N1C(=O)OC[C@@H]1Cc1ccccc1, O=Cc1ccc2ccccc2c1 to produce O=C(/C=C/c1ccc2ccccc2c1)N1CCOC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.