(R)-4-benzyl-3-((4R,6R,E)-7-(benzyloxy)-6-methyl-4-(tert-butyldimethylsilyloxy)hept-2-enoyl)oxazolidin-2-one

(R)-4-benzyl-3-((2R,4R,6R)-7-(benzyloxy)-2,6-dimethyl-4-(tert-butyldimethylsilyloxy)heptanoyl)oxazolidin-2-one

(4R,6R,8R)-9-(benzyloxy)-6-((tert-butyldimethylsilyl)oxy)-4,8-dimethylnonan-3-ol

(4R,6R,8R)-9-(benzyloxy)-4,8-dimethyl-6-(tert-butyldimethylsilyloxy)nonan-3-one