New Stereoconservative Syntheses of β,β,β- and γ,γ,γ-Trifluoro-α-amino, α-Hydroxy, and α-Mercapto Acids and Their Incorporation into a Peptide and Depsipeptide Fragment - Schedel, Hartmut; Dmowski, Wojciech; Burger, Klaus (Synthesis, 2000)