ENANTIOSPECIFIC SYNTHESES OF 2S,3R,4R,5S-TRIHYDROXYPIPECOLIC ACID, 2R,3R,4R,5S-TRIHYDROXYPIPECOLIC ACID, 2S,4S,5S-DIHYDROXYPIPECOLIC ACID, AND BULGECININE FROM DEUTERIUM-GLUCURONOLACTONE - Bashyal, B; Chow, H; Fleet, G (TETRAHEDRON LETTERS, 1986)