(4R,6R)-7-tert-butyldimethylsilyloxy-4,6-dimethyl-1-heptene

(2S,4R,6R)-7-[1-(tert-butyl)-1,1-dimethylsilyl]oxy-2,4,6-trimethylheptan-1-ol

(3S,4S,7R)-3,7-bis(tert-butyldimethylsilyloxy)-2,6-dimethylheptanethioic acid S-ethyl ester

(4R,5S)-3-[(2'R,3'S,6'R)-7'-tert-butyldimethylsilyloxy-3'-hydroxy-2',5'-dimethyl-1'-heptanoyl]-4-methyl-5-phenyl-2-oxazolidinone

(4R,5S)-3-[(2'R,3'S,6'R)-3',7'-bis(tert-butyldimethylsilyloxy)-2',5'-dimethyl-1'-heptanoyl]-4-methyl-5-phenyl-2-oxazolidinone