(3R)-3-benzyloxy-5-oxo-1-cyclopentene-1-carbaldehyde 1-propylene-acetal 5-ethylene-dithioacetal
(3R)-3-benzyloxy-5-oxo-1-cyclopentene-1-carbaldehyde 5-ethylene dithioacetal
(2R)-2-benzyloxy-4-oxo-1,6-hexanedial 4-ethylene dithioacetal
(3R,4S,5R)-5-O-benzyl-3,4,5-trihydroxycyclohexanone ethylene dithioacetal
(1R,2S,3R)-3-O-benzyl-1,2,3-cyclohexanetriol