(2R,3S,4S,6R)-1-((R)-4-Benzyl-2-thioxo-thiazolidin-3-yl)-6-[(2R,4S,5S,6R)-6-[(1R,2R)-2-(tert-butyl-dimethyl-silanyloxy)-1-methyl-butyl]-2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-2,4-dimethyl-3-triethylsilanyloxy-heptan-1-one

(2S,3R,4R,5S,6S,7R)-1-((R)-4-benzyl-2-thioxothiazolidin-3-yl)-5-(tert-butyldimethylsilyloxy)-2,4,6-trimethyl-3-(triethylsilyloxy)-7-(triisopropylsilyloxy)nonan-1-one

(2R,3S,4S,5S,6S,7R)-5-(tert-butyldimethylsilyloxy)-2,4,6-trimethyl-3-(triethylsilyloxy)-7-(triisopropylsilyloxy)nonan-1-ol

(2R,3S,4S,5S,6S,8R)-1-((R)-4-Benzyl-2-thioxo-thiazolidin-3-yl)-8-[(2R,4S,5S,6R)-6-[(1R,2R)-2-(tert-butyl-dimethyl-silanyloxy)-1-methyl-butyl]-2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-3-hydroxy-2,4,6-trimethyl-5-triethylsilanyloxy-nonan-1-one

(2S,3R)-1-((R)-4-benzyl-2-thioxothiazolidin-3-yl)-2-methyl-3-(triisopropylsilyloxy)pentan-1-one