In the title compound, C(9)H(11)BrN(2)O(5), the ribofuran-ose ring has a C2-exo, C3-endo twist configuration and is attached to the uracil unit via a β-N(1)-glycosidic bond. The crystal structure is stabilized by two inter-molecular O-H⋯O inter-actions and one inter-molecular N-H⋯O inter-action.

Inhaltsverzeichnis Einleitung 2 1 Theoretische Grundlagen 4 1.1 Tief inelastische ep-Streuung und

The title compound, C(6)H(12)O(6), also known as d-Tagatose, occurs in its furanose and pyranose forms in solution, but only the α-pyran-ose form crystallizes out. In the crystal, the molecules form hydrogen bonded chains propagating in [100] linked by O-H⋯O interactions. Further O-H⋯O bonds cross-link the chains.

The title compound, C(19)H(26)O(8)S, has been synthesized from 2,3:4,5-di-O-isopropyl-idene-β-d-fructopyran-ose. The absolute configuration of the fused ring is confirmed by anomalous dispersion effects in the diffraction measurement. The six-membered β-fructopyran-ose ring has a twist-boat conformation with the two five-membered rings trans to each other. In the crystal, inter-molecular non-cl...

Introduction. By a lattice homorphism of a group G onto a group G' we mean a single-valued mapping of the lattice L(G) of subgroups of G onto the lattice L(G') of subgroups of G', which preserves all unions and intersections, that is, which is subject to the conditions 1. (U,S,)0 = U,(S¿), 2. (r\vSr) = Ç)ASd>), for every (finite or infinite) set of subgroups 5„ of G. We call proper any l...

In order to confirm the link between nonenzymatic glycation and the polyol pathway, we observed the effect of treatment with epalrestat (Ep), an aldose reductase inhibitor, on the concentration of advanced glycation end-products (AGEs) in erythrocytes from diabetic patients. We also examined the effect of the drug on erythrocyte fructose 3-phosphate (F3P), a novel metabolite that has been repor...

The high mobility group box-B1 (HMGB1)-receptor for advanced glycation end-products (RAGE) and the protein kinase B (Akt) pathways play a crucial role in tumorigenesis and development of many malignant tumors. Ethyl pyruvate (EP), a potent inhibitor of HMGB1 release, can exert antitumor effects on the growth of gastric cancer. Therefore, it is nec...

Abstract In the quest in constructing conformal field theories (CFTs), Jones has discovered a beautiful and deep connection between CFT, Richard Thompson’s groups, knot theory. This led to powerful functorial framework for actions of particular groups arising from categories such as braid groups. particular, given group two its endomorphisms one can construct semidirect product where largest $V...