(3S,4S)-4-(2-benzyloxyethyl)-3-methoxymethyloxy-4-methyl-γ-butyrolactone

diethyl (2S,3R)-(+)-2-hydroxy-3-methylsuccinate

(3S,4S)-3-methoxymethyloxy-4-methyl-4-[2-(2-nitrophenyl)seleno]-γ-butyrolactone

(S)-3-[1-Hydroxy-2-(2-phenyl-[1,3]dioxolan-2-yl)-ethyl]-3-methoxymethoxy-4-methyl-4-vinyl-dihydro-furan-2-one

(3S,4S)-4-(2-benzyloxyethyl)-3-hydroxy-4-methyl-γ-butyrolactone