(S)-1-((1S,2R,3S,4R,5S)-2,3,4,5-Tetrakis-benzyloxy-cyclohexyl)-ethane-1,2-diol

(2S)-2-[(1S,2R,3S,4R,5S)-2,3,4,5-tetrakis-benzyloxy-cyclohexyl]-1,4-dioxa-spiro[4.5]decane

(1R,4S,5R)-(S)-4-(1,4-Dioxa-spiro[4.5]dec-2-yl)-bicyclo[3.2.0]heptan-2-one

(6S)-6-[(2S)-1,4-dioxa-spiro[4.5]dec-2-yl]octa-1,7-dien-4-ol

(R)-(S)-5-(1,4-Dioxa-spiro[4.5]dec-2-yl)-hepta-1,6-dien-3-ol