(1S)-2-Hydroxy-1,2,2-triphenylethyl (3S,5E)-5-ethyl-3-hydroxy-4,4-dimethyl-5-heptenoate

(S)-phenyl 5-((tert-butyldimethylsilyl)oxy)-3-hydroxy-2,2-dimethylpentanoate

(S)-3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2,2-dimethyl-pentanoic acid phenyl ester