Abstract: 1H-Pyrrolo-1,4-thiazines and a process for the preparation thereof are described. These compounds are useful as enzyme inhibitors in cells, particularly for medical uses.

Abstract: A process for preparing N-(substituted)-C-(substituted methyl)-oxazolidinones, C-(substituted methyl)-oxazolidinones, and N-(substituted)-C-(substituted methyl)-oxazolidinones, preferably chiral, from optically active C-(protected oxymethyl)-oxazolidinones is described. The process can be used to produce combinatorial libraries of the above substituted oxazolidinones in a two or three step reaction comprising a plurality of reagents differing in numbers of carbons or particular substituted oxazolidinones. A number of substituted oxazolidinones produced using the above process have been discovered to have antimicrobial activity.

Abstract: 1H-Pyrrolo-1,4-thiazines and a process for the preparation thereof are described. These compounds are useful as enzyme inhibitors in cells, particularly for medical uses.

Abstract: A process for producing 2-thiaquiolizidines which are glycosidase and glycosyltransferase inhibitors is described. The compounds are of the formula: where x is 0 to 3.

Abstract: A process for the preparation and separation of the pentoses, xylose and arabinose from mixtures of saccharides by forming acetals is described. D-xylose is a precursor to xylitol, a sweetener, and L-arabinose is a precursor to the drug intermediate (R)-3,4-dihydroxybutyric acid, carnitine and agrichemicals.

Abstract: Polyether polymers providing a backbone substituted at intervals with electron stabilizing groups containing electron withdrawing groups are described. The polymers capture electrons and are electronegative. The polymers act to solvate alkali metals so that electrons are withdrawn from the alkali metal into the polymer. The polymer compositions are conductive under certain conditions and are magnetic. The compositions are useful in electronic applications.