3-ethyl 1,2-dimethyl (1S,2S,3R,4R,5S)-4,5-(diethylmethylenedioxy)-1,2-(dimethylmethylenedioxy)-3,6-dihydroxyhexane-1,2,3-tricarboxylate

zaragozic acid C

tri(tert-butyl) [1S,1(4R,5R),3S,4S,5R,6R,7R]-1-(4-benzyloxy-5-methyl-6-phenylhexyl)-4,6,7-trihydroxy-2,8-dioxabicyclo[3.2.1]octane-3,4,5-tricarboxylate