2,2,2-Trichloro-N-[(1S,2S)-1-[(E)-2-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-vinyl]-2-hydroxy-4-(2,4,6-trimethyl-benzyloxy)-butyl]-acetamide

2,2,2-Trichloro-acetimidic acid (Z)-(S)-4-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-1-[2-(2,4,6-trimethyl-benzyloxy)-ethyl]-but-2-enyl ester

(2S,3S)-2-[(E)-(S)-4-(tert-Butyl-diphenyl-silanyloxy)-3-hydroxy-but-1-enyl]-3-methoxymethoxy-pyrrolidine-1-carboxylic acid benzyl ester