This tenth volume is the sixth in the series devoted to stereoselective synthesis. Review articles by leading exponents in the field covering the synthesis of cembranes, vitamin D, isoquinolinequinone antibiotics, medium ring ethers, didemnins, C-glycosides, blood group I and i active oligosaccharides, glycosidase and glycosyl transferase inhibitors, novel nucleosides, macrocyclic oligopeptides and chiral alkaloids should provide a wealth of information to a large number of organic chemists. Articles on additions to polyunsaturated carbonyl compounds, novel ring transformations and Claisen rearrangements applied to carbohydrate precursors are also included and should be interesting as well as stimulating to scientists in biology and natural products chemistry.