(1S,2R,3S,4R)-2-(tert-Butyl-dimethyl-silanyloxymethyl)-3-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-4-methoxymethoxymethyl-2-methyl-cyclohexanecarbaldehyde

(3aS,6R,7S,7aS)-7-((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-6-hydroxymethyl-7a-methyl-hexahydro-isobenzofuran-1-one