(1s,2R,6S)-tert-butyldimethyl<(2,6-dimethyl-4-oxo-1-cyclohexyl)oxy>silane

(7R,8s,9S)-tert-butyldimethyl<(7,9-dimethyl-1,4-dioxaspiro<4.5>decan-8-oyl)oxy>silane

(1R*,2S*,3S*,6R*)-tert-butyldimethyl<(2,6-dimethyl-3-hydroxy-4-oxocyclohexyl)oxy>silane

(1R*,2R*,3S*,6R*)-tert-butyldimethyl<(3-((tert-butyldimethylsilyl)oxy)-2,6-dimethyl-4-oxo-1-cyclohexyl)oxy>silane

(1R*,2S*,3S*,5R*,6R*)-tert-butyldimethyl<(3-((tert-butyldimethylsilyl)oxy)-2,6-dimethyl-5-hydroxy-4-oxo-1-cyclohexyl)oxy>silane