(2R,8S,9R)-1,9-Bis-(tert-butyl-dimethyl-silanyloxy)-10-(4-methoxy-benzyloxy)-2,8-dimethyl-decan-5-one

(2R,6R)-1-tert-butyldimethylsilyloxy-2,6-dimethyl-7-tetrahydropyranyloxyheptane

(3S,4R,5S,7R)-8-((tert-butyldimethylsilyl)oxy)-3,5,7-trimethyloct-1-yn-4-ol

(3S,4R,5S,7R)-8-((tert-butyldimethylsilyl)oxy)-3,5,7-trimethyl-1-(triisopropylsilyl)oct-1-yn-4-ol