(R)-2-tert-butoxycarbonylamino-3-[5-chloro-1-(dimethoxy-phosphorylmethyl)-1H-benzoimidazol-2-yl]propionic acid benzyl ester
(R)-2-tert-butoxycarbonylamino-3-[6-chloro-1-(dimethoxy-phosphorylmethyl)-1H-benzoimidazol-2-yl]propionic acid benzyl ester
N-Boc O-tosyl L-homoserine benzyl ester
(α)N-1,1-dimethylethoxycarbonyl-L-2,4-diaminobutyric acid