(2R,3S,4S)-3-(tert-Butyl-dimethyl-silanyloxy)-5-(tert-butyl-diphenyl-silanyloxy)-2-((Z)-2-iodo-vinyl)-4-methyl-pentan-1-ol

(2R,3S,4S)-3-(tert-Butyl-dimethyl-silanyloxy)-2-(tert-butyl-dimethyl-silanyloxymethyl)-5-(4-methoxy-benzyloxy)-4-methyl-pentanal