3-((4aS,5S,6S,8aS)-6-((tert-butyldimethylsilyl)oxy)-5,8a-dimethyloctahydro-2H-spiro[naphthalene-1,2'-[1,3]dioxolan]-5-yl)propan-1-ol

3-((4aS,5S,6S,8aS)-6-((tert-butyldimethylsilyl)oxy)-5,8a-dimethyloctahydro-2H-spiro[naphthalene-1,2'-[1,3]dioxolan]-5-yl)propanal