andKatarzynaSzewczykandZbigniewSDOSTetrahedron: AsymmetryS. Jarosz,S. Skora,K. Szewczyk,Z. Ciunik.Reaction of sugar allyltins with aldehydes.A remarkable difference in reactivity between furanose and pyranose arganometallic derivatives.Tetrahedron Asymmetry. 2001...
Pyranose ring form is hexagonal with 5 carbon atoms and 1 oxygen atom. Furanose ring form is pentagonal with 4 carbon atoms and 1 oxygen atom.
aThe two pyranoses (αandβ) and the two furanoses (αandβ) are in equilibrium at a given temperature and pressure with the high-energy linear conformation. The rates of chemical transformations,kij, are given by expressions (1).bScheme of the Gibbs free-energy landscape along a representa...
H-Atoms bound to C-atoms from the pentafuranose and isopropylidene rings were located on a difference Fourier map and refined freely. H-atoms from the –CH2 and –CH3 groups were positioned geometrically and refined using a riding model, with C–H = 0.97 and 0.98 Å and Uiso(H) = ...
Consider the β-pyranose and β-furanose anomers of d-fructose. Draw the α-pyranose and a-furanose anomers. Fruit Sugar: Fruit sugar, also known as Fructose, is a simple sugar or monosaccharide found in various ripe fruits. This sugar is su...
Ciunik.Reaction of sugar allyltins with aldehydes.A remarkable difference in reactivity between furanose and pyranose arganometallic derivatives.Tetrahedron Asymmetry. 2001Jarosz S,Skóra S,Szewczyk K,et al.Reaction of sugar allyltins with aldehydes:a remarkable difference in reactivity be-tween furano...
Pyranosefuranose mutases are essential enzymes in the life cycle of a number of microorganisms, but are absent in mammalian systems, and hence represent novel targets for drug development. To date, all such mutases show preferential recognition of a single substrate (e.g., UDP-Gal). We report...
(2003). Synthesis and inhibition properties of conformational probes for the mutase-catalyzed UDP-galac- topyranose/furanose interconversion. Chemistry 9, 5888-5898.Caravano et al. (Dec. 5, 2003) " Synthesis and Inhibition Properties of Conformational Probes for the Mutase-Catalyzed UDP-Galacto...