(1R,2S,3R)-1-O-benzyl-2,3-O-isopropylidenecyclopent-4-ene-1,2,3,4-tetrol

(S)-4-叔丁基二甲基硅氧基-2-环戊酮

(1R,4S)-1-O-benzyl-4-O-(tert-butyldimethylsilyl)cyclopent-2-ene-1,4-diol

(1R,2R,3S,4S)-1-O-benzyl-4-O-(tert-butyldimethylsilyl)cyclopentane-1,2,3,4-tetrol

(1R,2S,3S,4S)-1-O-benzyl-4-O-(tert-butyldimethylsilyl)-2,3-O-isopropylidenecyclopentane-1,2,3,4-tetrol