allyl (5R,6S,8R)-5-tosyloxy-6-methyl-7-oxo-8-[(tert-butyldimethylsilyl)oxy]-8-phenyl-oct-2(E)-enoate

(E)-(5S,6S,7R,8R)-5-[(S)-2-((R)-3-tert-Butoxycarbonylamino-2-methyl-propionyloxy)-4-methyl-pentanoylamino]-8-(tert-butyl-dimethyl-silanyloxy)-7-hydroxy-6-methyl-8-phenyl-oct-2-enoic acid

methyl (5R,6S,8R)-5-tosyloxy-6-methyl-7-oxo-8-[(tert-butyl-dimethylsilyl)oxy]-8-phenyl-oct-2(E)-enoate

methyl (5R,6S,8R)-5-hydroxy-6-methyl-7-oxo-8-[(tert-butyl-dimethylsilyl)oxy]-8-phenyl-oct-2(E)-enoate

methyl (5R,6R,7R,8R)-5-tosyloxy-6-methyl-7-hydroxy-8-[(tert-butyl-dimethylsilyl)oxy]-8-phenyl-oct-2(E)-enoate