(2S,3S,4S,5R)-3,4,5,6-tetrahydroxyoxane-2-carboxylate (2S,3S,4S,5R)-3,4,5,6-tetrahydroxytetrahydropyran-2-carboxylate (2S,3S,4S,5R)-3,4,5,6-tetrahydroxy-2-tetrahydropyrancarboxylate nchembio.2007.41-comp1