(4R)-4-[(4S)-2,2-Dimethyl-4-[[2-(trimethylsilyl)ethoxy]carbonyl]-1,2-dioxolanyl]pentanoic Acid

(4R,5S)-5-[[2-(Trimethylsilyl)ethoxy]carbonyl]-5-(hydroxymethyl)-4-methyl-5-pentanolide

(2S,3R)-2-(trimethylsilyl)ethyl 2-((methoxymethoxy)methyl)-3-methyl-6-oxotetrahydro-2H-pyran-2-carboxylate