cis-4-diethoxyphosphoryl-4,5-dihydro-5-phenyl-2(3H)-furanone
trans-4-diethoxyphosphoryl-4,5-dihydro-5-phenyl-2(3H)-furanone
(2-benzyloxycarbonylamino-ethyl)-phosphonic acid diethyl ester
3-(Diethoxyphosphoryl)methyl-5-methyl-4-phenyl-2(5H)furanone
2-Formylphenyl 3-(diethoxyphosphoryl)propionate