5-methylindene-1,3-dione

bis(1-acetamido-2,2,2-trichloroethyl) propanedioate

2-ethoxy-2-oxo-1,3-dipropyl-1,3,2λ⁵-diazaphosphinane-4,6-dione

2-oxo-2-phenoxy-1,3,2λ⁵-diazaphosphinane-4,6-dione

1,3-dimethyl-2-oxo-2-phenoxy-1,3,2λ⁵-diazaphosphinane-4,6-dione