((2S,4R)-5-Hydroxy-2,4-dimethyl-pentyl)-((R)-1-phenyl-ethyl)-carbamic acid tert-butyl ester

[(E)-(2S,4R,8R,9S,11R)-8-(tert-Butyl-dimethyl-silanyloxy)-9-hydroxy-2,4,11,15-tetramethyl-5,13-dioxo-hexadeca-6,15-dienyl]-((R)-1-phenyl-ethyl)-carbamic acid tert-butyl ester

[(E)-(2S,4R,8R,9S,11R)-8-(tert-Butyl-dimethyl-silanyloxy)-9-(4-methoxy-benzyloxy)-2,4,11-trimethyl-5,13-dioxo-tridec-6-enyl]-((R)-1-phenyl-ethyl)-carbamic acid tert-butyl ester

[(E)-(2S,4R,8R,9S,11S)-8,13-Bis-(tert-butyl-dimethyl-silanyloxy)-9-(4-methoxy-benzyloxy)-2,4,11-trimethyl-5-oxo-tridec-6-enyl]-((R)-1-phenyl-ethyl)-carbamic acid tert-butyl ester