H-D-DAB(BOC)-OH

(R)-2-AMino-4-(Boc-aMino)butyric acid, 96%

(R)-2-aMino-4-(tert-butoxycarbonyl ) butanoic acid

N-GAMMA-T-BUTOXYCARBONYL-D-2,4-DIAMINOBUTYRIC ACID

(2R)-2-Amino-4-[[(1,1-dimethylethoxy)carbonyl]amino]butanoic acid