(2S,3S,4R,8R,10R)-1,3-bis(tert-butyldimethylsilanyloxy)-10-[(2S,4R,5S)-2-(4-methoxyphenyl)-5-methyl[1,3]dioxan-4-yl]-2,4,8-trimethylundec-6-en-5-one

(4R,5S)-4-{(1S)-1-[(2S,4S,5S)-2-(4-methoxyphenyl)-5-methyl[1,3]dioxan-4-yl]ethyl}-5-methyl[1,3]dioxane-2-thione