(4S,5S)-5-ethyl-4-[(1S,3R)-3-(2-furyl)-1,3-dimethylpropyl]-2,2-di-tert-butyl-1,3-dioxa-2-silacyclohexane

(5R,7S)-7-((4S,5S)-2,2-Di-tert-butyl-5-ethyl-[1,3,2]dioxasilinan-4-yl)-1,1-diethoxy-5-methyl-oct-2-yn-4-ol

(4S,5S)-5-ethyl-4-((1S,3R)-4-hydroxy-1,3-dimethylbutyl)-2,2-di-tert-butyl-1,3-dioxa-2-silacyclohexane

(4S,5S)-5-ethyl-4-((1S,3R)-1,3-dimethyl-4-oxobutyl)-2,2-di-tert-butyl-1,3-dioxa-2-silacyclohexane

(S)-4-((2R,5R,6S)-5-Ethyl-6-methyl-5-triethylsilanyloxy-tetrahydro-pyran-2-yl)-4-hydroxy-1-[5-((1R,3S,4S,5S)-4-hydroxy-5-hydroxymethyl-1,3-dimethyl-heptyl)-furan-2-yl]-pentan-1-one