Preparation of 3-Alkyl β-Lactams via the Ketene-Imine Cycloaddition Reaction Using α-(Phenylthio)alkanoyl Halides as Starting Materials: Application to the Synthesis of (±)-Carbapenem Building Blocks and Related Compounds

1. Palomo, C.
2. Cossio, F.P.
3. Odiozola, J.M.
4. Oiarbide, M.
5. Ontoria, J.M.