Abstract An atom-efficient and stereoselective synthesis has been developed for the preparation of α-2 H-labelled (S)-α-amino acids, starting from a novel chiral diketopiperazine scaffold. Efficient mono-alkylation of the chiral template afforded the (S)-substituted adducts with the nature of the electrophile significantly effecting the stereochemical outcome. Subsequent alkylation was totally selective producing the 1, 4-cis adduct as the sole ...
![(3R,6R)-[3-(2)H,6-(2)H]-1,4-bis((S)-1-(4-methoxyphenyl)ethyl)-3,6-dimethylpiperazine-2,5-dione结构式](https://image.chemsrc.com/caspic/456/1246496-76-3.png)
