Acetic acid (R)-1-{2-[(1R,5R)-5-(tert-butyl-dimethyl-silanyloxy)-1-methyl-3-methylene-octyl]-[1,3]dithian-2-yl}-2-[(2R,4S,5S)-5-((S)-6-hydroxy-5-methyl-hexyl)-4-methyl-tetrahydro-furan-2-yl]-ethyl ester

Acetic acid (R)-2-[(2R,4S,5S)-5-((S)-6-benzyloxy-5-methyl-hexyl)-4-methyl-tetrahydro-furan-2-yl]-1-{2-[(1R,5R)-5-(tert-butyl-dimethyl-silanyloxy)-1-methyl-3-methylene-octyl]-[1,3]dithian-2-yl}-ethyl ester