(6R,7S,8S)-7-(tert-Butyl-dimethyl-silanyloxy)-4,4,6,8-tetramethyl-5-oxo-undec-10-enoic acid methyl ester

(S)-2-Azido-propionic acid (1R,2S,5R)-5-methoxy-1-[1-((S)-1-methoxycarbonyl-ethylcarbamoyl)-1-methyl-ethyl]-2-methyl-octyl ester

(S)-2-Azido-propionic acid (1R,2S,5S)-5-methoxy-1-[1-((S)-1-methoxycarbonyl-ethylcarbamoyl)-1-methyl-ethyl]-2-methyl-octyl ester

(4S,7R,8S,9S)-12-benzyloxy-4-(tert-butyl-dimethyl-silanyloxy)-8-hydroxy-5,5,7,9-tetramethyl-dodec-1-en-6-one

(4S,7S,8R,9S)-12-(benzyloxy)-4-((tert-butyldimethylsilyl)oxy)-8-hydroxy-5,5,7,9-tetramethyldodec-1-en-6-one