(R)-5-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-12-hydroxy-dodecyl]-dihydro-furan-2-one

(R)-5-[(1R,12R)-1-(tert-Butyl-dimethyl-silanyloxy)-12,13-dihydroxy-tridecyl]-dihydro-furan-2-one

Trifluoro-methanesulfonic acid (2R,13R)-2,13-bis-(tert-butyl-dimethyl-silanyloxy)-13-((R)-5-oxo-tetrahydro-furan-2-yl)-tridecyl ester