(3R,4S)-4-(N-((S)-2-benzyloxy-3-methylbutanoyl)-N-methylamino)-3-tert-butyldimethylsilyloxy-5-phenylpentanoic acid

(2S,5S,6R,10R,11S)-5-Benzyl-6-(tert-butyl-dimethyl-silanyloxy)-10-heptyl-2-isopropyl-4,11-dimethyl-1,9-dioxa-4-aza-cyclododecane-3,8,12-trione

(1R)-2-endo-[(3R,4S)-3-hydroxy-4-(N-methylamino)-5-phenylpentanoyl]-2-exo-trimethylsilyloxy-1,7,7-trimethylbicyclo[2.2.1]heptane

(1R)-2-endo-[(3R,4S)-4-(N-((2S)-benzyloxy-3-methylbutanoyl)-N-methylamino)-3-hydroxy-5-phenylpentanoyl]-1,7,7-trimethylbicyclo[2.2.1]heptan-2-ol

(1R)-2-endo-[(3R,4S)-4-(N-((S)-2-benzyloxy-3-methylbutanoyl)-N-methylamino)-3-hydroxy-5-phenylpentanoyl]-2-exo-trimethylsilyloxy-1,7,7-trimethylbicyclo[2.2.1]heptane