(2R,3aR,6aR)-5-Oxo-hexahydro-furo[3,2-b]furan-2-carbaldehyde

(3aR,5R,6aR)-5-(tert-Butyl-diphenyl-silanyloxymethyl)-tetrahydro-furo[3,2-b]furan-2-one

Acetic acid (2R,3R,5R)-5-(tert-butyl-diphenyl-silanyloxymethyl)-2-((E)-5-trimethylsilanyl-pent-2-en-4-ynyl)-tetrahydro-furan-3-yl ester

(2R,3R,5R)-5-(tert-Butyl-diphenyl-silanyloxymethyl)-2-((E)-5-trimethylsilanyl-pent-2-en-4-ynyl)-tetrahydro-furan-3-ol

(R)-6-(tert-Butyl-diphenyl-silanyloxy)-5-hydroxy-hex-1-en-3-one