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

(2S,3R)-1-((R)-4-benzyl-2-thioxothiazolidin-3-yl)-3-hydroxy-2-methylpentan-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

(2S,3R)-2-methyl-3-(triisopropylsilyloxy)pentanal

(2R,3S,4S,5R)-3-(tert-butyldimethylsilyloxy)-2,4-dimethyl-5-(triisopropylsilyloxy)heptanal