(S)-NCbz-(α-Me)Ser(OH)-OMe

(2R,3S,4R)-2,4-di(acetyloxy)-3-methylpentanoic acid

(S)-2-Benzyloxycarbonylamino-2-methyl-3-trityloxy-propionic acid methyl ester

Acetic acid (1R,2S,3R)-3-acetoxy-1-benzyloxymethyl-2-methyl-butyl ester

(2R,3S,4R)-1-Benzyloxy-3-methyl-pentane-2,4-diol