The potential of D-glucuronolactone for the synthesis of polyhydroxylated amino acids is illustrated by the enantiospecific syntheses of 2S,3R,4R,5S-trihydroxy-pipecolic acid, 2R, 3R, 4R, 5S-trihydroxypipecolic acid and 2R,3R,4R-dihydroxyproline. © 1987.