L. Lay et al., SYNTHETIC APPROACH TO KDO GLYCOSIDES VIA EXO-GLYCAL EPOXIDES AND RATIONALIZATION OF THE STEREOCHEMICAL OUTCOME, Journal of carbohydrate chemistry, 17(8), 1998, pp. 1269-1281
The use of epoxides obtained by dimethyldioxirane epoxidation of y-4,5
:7,8-di-O-isopropylidene-D-manno-oct-1-enitol as glycosyl donors is de
scribed. This method offers a simple and stereoselective access to pre
cursors of Kdo glycosides. The stereochemical outcome of the reaction
is rationalized by means of semiempirical calculations of the transiti
on states leading to glycosides formation.