(3R,4S)-1-(4-Fluorophenyl)-3-[(3S)-3-(4-fluorophenyl)-3-[(trimethylsilyl)oxy]propyl]-4-[4-[(trimethylsilyl)oxy]phenyl]-2-azetidinone-d4 is an intermediate used in the synthesis of Ezetimibe-d4 (E975002), which is a labeled Ezetimibe (E975000), an antihyperlipoproteinemic. A Cholesterol absorption inhibitor.