3,5-Dinitro-benzoic acid (8E,14E)-(2R,6S,7R,12S)-2,6,12-trimethyl-4,10,16-trioxo-1,5,11-trioxa-cyclohexadeca-8,14-dien-7-yl ester

(E)-(4R,5R,7R)-4,5-Dihydroxy-7-((E)-(S)-5-hydroxy-hex-2-enoyloxy)-oct-2-enoic acid 2-(toluene-4-sulfonyl)-ethyl ester

(E)-(S)-5-Hydroxy-hex-2-enoic acid (R)-2-((4R,5R)-2,2-dimethyl-5-{(E)-2-[2-(toluene-4-sulfonyl)-ethoxycarbonyl]-vinyl}-[1,3]dioxolan-4-yl)-1-methyl-ethyl ester

(E)-(S)-5-Hydroxy-hex-2-enoic acid (R)-2-[(4R,5R)-5-((E)-2-carboxy-vinyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-1-methyl-ethyl ester