ChemInform Abstract: N‐Boc‐α‐tosylsarcosine Ethyl Ester: An α‐Amido Sulfone for the Regio‐ and Stereoselective Synthesis of Protected γ,δ‐Unsaturated N‐Methyl‐α‐amino Acids by Palladium‐Catalyzed Nucleophilic Substitution. | Publicación