(3aR,4S,6aS)-4-(((tert-butyldiphenylsilyl)oxy)methyl)tetrahydrospiro[cyclopenta[b]furan-5,2'-[1,3]dithiolan]-2(3H)-one

(3aR,4S,6aS)-4-(((tert-butyldiphenylsilyl)oxy)methyl)hexahydrospiro[cyclopenta[b]furan-5,2'-[1,3]dithiolan]-2-ol

1-(2-iodoethyl)-4-methyl-2,6,7-trioxabicyclo<2.2.2>octane

1-(2-triphenylphosphoniumethyl)-4-methyl-2,6,7-trioxabicyclo<2.2.2>octane iodide

(3aR,4S,6aS)-4-(tert-Butyl-diphenyl-silanyloxymethyl)-tetrahydro-cyclopenta[b]furan-2,5-dione

Acetic acid (3aR,4S,5R,6aS)-4-(tert-butyl-diphenyl-silanyloxymethyl)-2-oxo-hexahydro-cyclopenta[b]furan-5-yl ester

((6a'R,7'S,9a'S,Z)-7'-(hydroxymethyl)-5-methyl-3',6',6a',7',9',9a'-hexahydrodispiro[[1,3]dioxane-2,2'-cyclopenta[b]oxocine-8',2''-[1,3]dithiolan]-5-yl)methyl benzoate

(7S,8R,9S)-9-(tert-Butyl-diphenyl-silanyloxymethyl)-8-[(Z)-4-(4-methyl-2,6,7-trioxa-bicyclo[2.2.2]oct-1-yl)-but-2-enyl]-1,4-dithia-spiro[4.4]nonan-7-ol