Synthesis of heterocyclic systems with carbohydrate fragment
作者:A. V. Samet、Y. P. Kislyi、N. B. Chernyshova、D. N. Reznikov、B. I. Ugrak、V. V. Semenov
DOI:10.1007/bf01433979
日期:1996.2
The reactions of levoglucosenone with amides of several α-nitrocarboxylic acids and acetoacetic acid result in tetra hydropyridones fused with a carbohydrate fragment. In the case of acetoacetic acid amides, mixtures of keto and enol tautomers were obtained. The stereochemistry of cyclization is discussed in detail.
Novel quinoxaline-di-N-oxide derivatives of the formula ##STR1## are disclosed, wherein R represents a hydrogen atom, an alkyl group of 1 to 12 carbon atoms, a cyanoalkyl group containing 1 to 4 carbon atoms in the alkyl moiety or an allyl group, and A represents a straight-chain or branched alkylene bridge member containing 1 to 4 carbon atoms. These compounds are useful for the control of pathogenic microorganisms and for stimulating the growth of domestic animals and productive livestock.