Using O=[PH](c1ccccc1)c1ccccc1, Cc1cc(C)c(C=O)c(C)c1 to produce Cc1cc(C)c(C(O)P(=O)(c2ccccc2)c2ccccc2)c(C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.