The development of two iterative asymmetric hydration approaches to the synthesis
of all syn- and syn/anti/syn-1,3,5,7-tetraol motifs is described. These pseudo-symmetric products are synthetic
precursors for 1,3-hexol products. The utility of the route to the all syn-1,3,5,7-tetraol diastereoisomer was demonstrated with its use in the synthesis of
cryptocaryols A and B, as well as, stereoisomers.
Key words
asymmetric synthesis - iterative hydration - cryptocaryol A - cryptocaryol B - 1,3-polyols