Jp. Praly et al., NOVEL CYCLIZATION OF D-GLUCOPYRANOSYL-(Z)-THIOHYDROXIMATES LEADING TONEW ANOMERIC SPIRO OXATHIAZOLE DERIVATIVES, Tetrahedron letters, 34(21), 1993, pp. 3419-3420
Both alpha- and beta-anomers of tyl-1-S-(Z)-benzhydroximoyl-1-thio-D-g
lucopyranose yielded, when treated with N-bromosuccinimide in refluxin
g carbon tetrachloride, the same mixture of new anomeric spiro oxathia
zole derivatives in which the major epimer has a (S) configuration at
the anomeric centre.