Carbamoyloxyimino derivatives of oxazolidinones and thiazolidinones

Abstract From the Canadian patent

Compounds of Formula I wherein Q is oxygen or sulphur or the sulphoxide or sulphone group; R1 R2, and R3, which may be, the same or different are hydrogen, or unsubstituted, or substituted, hydrocarbyl or heterocyclic radicals; either X or Y is a group of Formula II where R4 and R5, which may be the same of different, are hydrogen or unsbustituted or substituted, hydro-, carbyl radicals or the acyl residues of carboxylic or sulphurcontaining acids; and either Y or X is oxygen sulphur or the hydro-, carbylimino radical. (I) (II)