Formation of 3-[1′-(Dimethylphenylsilyl)ethyl]azetidin-2-ones: Stereocontrolled Formal Approach to (±)-Thienamycin and(±)-β-(Hydroxyalky)aspartic Acid Derivatives

1. Palomo, C.
2. Aizpurua, J.M.
3. Urchegui, R.
4. Iturburu, M.