1-[(4S,5R)-4-(tert-Butyl-diphenyl-silanyloxymethyl)-2,2-dimethyl-5-vinyl-[1,3]dioxolan-4-yl]-prop-2-en-1-ol

(3aR,4R,6R,6aR)-2,2-dimethyl-6-(trityloxymethyl)-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-4-ol

[(3aR,4R,6aR)-6a-(tert-Butyl-diphenyl-silanyloxymethyl)-6-methoxy-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl]-methanol