(2R,3R,4R)-3-[(tert-butyldimethylsilyl)oxy]-1-hydroxy-2,4-dimethylhex-5-ene

(3R,4S,5R)-4-[(tert-butyldimethylsilyl)oxy]-3,5-(dimethyl)hept-6-en-1-al

(3R,4S,5R)-1,4-di-[(tert-butyldimethylsilyl)oxy]-3,5-dimethylhept-1-ene

(2S,3S,4R)-3,6-di-[(tert-butyldimethylsilyl)oxy]-2,4-dimethylhexan-1-al