(2R,3R,6S,8S,9R,11R,1R)-2-(hydroxyethyl)-8-[1'-methyl-2'-oxo-2'-(1H-pyrrol-2-yl)ethyl]-3,9,11-trimethyl-1,7-dioxaspiro[5.5]undecane

(2R,3R,6S,8S,9R,11R,1R)-2-<<(2'-tert-butyldiphenylsilyl)oxy>ethyl>-8-<1-methyl-2-oxo-(1H-pyrrol-2-yl)ethyl>-3,9,11-trimethyl-1,7-dioxaspiro<5.5>undecane

(2R,4R)-2-methyl-4-((4S,5R)-2,2,5-trimethyl-1,3-dioxan-4-yl)pentan-1-ol

(2S,4S)-2-methyl-4-((4S,5S)-2,2,5-trimethyl-1,3-dioxan-4-yl)pentanal