Chemical modification of lactose. X. Syntheses of 4-O-(3-O-methyl-.BETA.-D-idopyranosyl)-D-glucopyranose and 4-O-(3-deoxy-.BETA.-D-lyxo-hexopyranosyl)-D-glucopyranose.
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چکیده
منابع مشابه
Utilization and metabolism of [U-14C]4' galactosyllactose (O-beta-D-galactopyranosyl-(1----4)-O-beta-D-galactopyranosyl-(1----4)- D-glucopyranose) in rats.
O-beta-D-Galactopyranosyl-(1----4)-O-beta-D-galactopyranosyl- (1----4)-D-glucopyranose (designated as 4'GL) are produced from lactose with Cryptococcus laurentii OKN-4. Excretion and metabolism of 4'GL in rats were examined using a radioisotope technique. [U-14c]4'GL was synthesized from [U-14C]lactose by Cryptococcus laurentii OKN-4. The 14CO2 in expired air was counted after oral administrati...
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The title compound, C(13)H(24)O(11)·4H(2)O, forms extended hydrogen-bonded networks. These are present between disaccharides, but not as inter-residue hydrogen bonds, as well as to water mol-ecules that in addition form an inter-molecular chain of hydrogen bonds. The conformation of the disaccharide is described by the glycosidic torsion angles ϕ(H) = -34° and ψ(H) = -5°. Macroscopically, the d...
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We study the phase diagram of the four dimensional O(4) model with first (β1) and second (β2) neighbor couplings, specially in the β2 < 0 region, where we find a line of transitions which seems to be second order. We also compute the critical exponents on this line at the point β1 = 0 (F4 lattice) by Finite Size Scaling techniques up to a lattice size of 24, being these exponents different from...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1978
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.26.3426