4(R),5(S),8(S)-4-acetoxy-8-[(E),1(S),6(S)-6-(tert-butyldimethylsilyloxy)-1,3,7-trimethyl-2-oxo-oct-3-enyl]-5-methyl-oxocan-2-one

4(R),5(S),8(S)-4-acetoxy-8-[(E),1(R),2(R),6(S)-6-(tert-butyldimethylsilyloxy)-2-hydroxy-1,3,7-trimethyl-oct-3-enyl]-5-methyl-oxocan-2-one

4(R),5(S),8(S)-4-acetoxy-8-[(E),1(R),2(S),6(S)-6-(tert-butyldimethylsilyloxy)-2-hydroxy-1,3,7-trimethyl-oct-3-enyl]-5-methyl-oxocan-2-one

4(R),5(S),8(S)-4-acetoxy-8-{2-[3-((S)-2-(tert-butyldimethylsilyloxy)-3-methyl-butyl)-2(S),3(R)-2-methyl-oxiranyl]-1(S)-methyl-2-oxo-ethyl}-5-methyl-oxocan-2-one

(4R,5S,8S)-8-((S)-2-{(2S,3R)-3-[(S)-2-(tert-Butyl-dimethyl-silanyloxy)-3-methyl-butyl]-2-methyl-oxiranyl}-1-methyl-2-oxo-ethyl)-4-(4-methoxy-benzyloxy)-5-methyl-oxocan-2-one