The chemical synthesis of beta-(1-->4)-linked D-mannobiose and D-mannotriose

A D-cellobiose derivative was converted to D-mannobiose via simultaneous epimerization at C-2 and C-2'. Subsequent beta-D-glucosylation and epimerization at C-2" gave D-mannotriose.     

Synthesis of oligosaccharide fragments of the Streptococcus pneumoniae type 14 capsular polysaccharide and their neoglycoconjugates with bovine serum albumin

2-Aminoethyl glycosides of tetra-, hexa- and octasaccharide fragments of the bacteria Streptococcus pneumoniae type 14 capsular polysaccharide were synthesized within a project directed to the development of pneumococcal conjugated vaccine based on synthetic carbohydrate ligands. Squarate method was used to obtain neoglycoconjugates of the synthesized oligosaccharides with bovine serum albumin.     

Study of sulfated derivatives of polyhydroxy compounds as inhibitors of blood coagulation

Persulfated derivatives of natural polyhydroxy compounds, such as lignans secoisolariciresinol, and isolariciresinol, flavonoid dihydroquercetin, and myo-inositol, have been synthesized. The ability of these compounds to inhibit the intrinsic pathway of blood coagulation (APTT-test) and to reduce the activity of coagulation factor Xa in the presence of antithrombin(III) has been studied.     

On Transformations of Three-Valued Random Variables by Bivariate Functions

Journal of Applied and Industrial Mathematics - We consider transformations of three-valued random variables by functions of the three-valued logic. For arbitrary systems of bivariate functions...     

On Necessary Conditions of Probability Limit Theorems in Finite Algebras

Doklady Mathematics - We consider the conditions for a finite set with a given system of operations (a finite algebra) to be subject to a probability limit theorem, i.e., arbitrary computations...     

Porphyrins. 40. Chemistry of Oximes of Metal Complexes of <Emphasis Type="Italic">meso</Emphasis>-Formyloctaalkylporphyrins. Synthesis,Molecular and Crystal Structure of Nickel Complexes of “Tripyrrolylisoxazoles”

The synthesis has been carried out of nickel complexes of oximes of two isomers of meso-formyletioporphyrin-II and their conversion in the heterophase system methylene chloride-water into nickel complexes of tripyrrolylisoxazoles has been studied. The structure of one of them was established by X-ray structural analysis.__________Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 697–704, May, 2005.     

Synthesis of 3-aminopropyl glycosides of branched β-(1→3)-glucooligosaccharides

Russian Chemical Bulletin - The synthesis of branched β-(1→3)-glucooligosaccharides bearing a β-d-glucose residue at position 6 of one of the monosaccharides of the linear chain at...