(R)-5-((S)-3-Benzenesulfonyl-6-{(6S,7R)-7-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-6,7-dimethyl-1,4-dioxa-spiro[4.5]dec-6-yl}-4-hydroxy-2-methyl-hexyl)-2,2-dimethyl-oxazolidine-3-carboxylic acid benzyl ester

(3S,5R)-dihydro-5-hydroxymethyl-3-methyl-2(3H)-furanone

3S,5R-5-azidomethyl-3-methyl-4,5-dihydro-2(3H)-furanone

(R)-5-((S)-3-Benzenesulfonyl-2-methyl-propyl)-2,2-dimethyl-oxazolidine-3-carboxylic acid benzyl ester

(3S,5R)-5-Aminomethyl-3-methyl-dihydro-furan-2-one