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In order to create biologically and physiologically active preparations, a synthesis of sulphur-containing glycosides of a new type was carried out. The hydrosulphation reactions of 1-O-allyl-2,3,4,6-tetra-O-acetyl-β-D-altropyranose with ethyl-, propyl-, and n-butylmercaptans in the presence of a neutral benzoyl peroxide catalyst were discussed. New synthesis methods have been developed. The antimicrobial activity of the synthesised products was studied. [ABSTRACT FROM AUTHOR]

The reactions of N-p-carboxyphenyl-β-D-glucopyranosylamine and N-p-carboxyphenyl-β-D-galactopyranosylamine with dicyclohexylcarbodiimide in the presence of tetrahydrofuran and triethylamine were studied for the first time. Interaction of the synthesised acylureas with sodium nitrite was used to obtain glycosylamines containing a nitroso (N=O) group. The synthesised compounds were studied within the framework of mathematical chemistry, using the method of quasi-PNS-matrices (PNS-). The influence of compounds: b-N-(p-carboxyphenylgalactopyranosyl)- acylurea and b-N-(p-carboxyphenylgalactopyranosyl)-nitrosourea on the growth and development of microorganism has been investigated. The antimicrobial properties of the synthesised compounds were studied on various microorganisms. [ABSTRACT FROM AUTHOR]

The article presents a note on the possible molecular mechanism of the mesomeric effect in irregular biopolymers (proteins). It says that in biopolymers, which have electronic communication, the shift of the electron density can be spread over large distances. It adds that this corresponds to the mesomeric (M) effect.

It is planned to conduct researches on improvement of heliotechnological designs with use of the latest technologies - infrared radiators and polycarbonate materials and to improvement of quality of the dried-up production. Offered heliodrying from the device are intended for small-scale country enterprises. Use of heliodrying with allows to begin drying of agricultural production in any weather conditions, and also, having begun drying, not to interrupt because of adverse conditions. [ABSTRACT FROM AUTHOR]

A synthesis of sulfur-containing glycosides based on interaction of allyl derivatives of acetylated carbohydrates-glucose, maltose, and lactose-with phenylsulfenechloride is described. The bactericidal properties of the resulting compounds were studied. Compounds were found to have different levels of inhibitory activity against microorganisms. [ABSTRACT FROM AUTHOR]

The article examines the synthesis of certain S-containing disaccharide derivatives. These S-containing disaccharides refer to hepta-O-acetyl-1-O-beta-D-maltose and hepta-O-acetyl-1-O-beta-D-lactose by reaction of allylmaltose and allyllactose with phenylsulfenyl chloride. And it is shown that the tested compounds were toxic and inhibited the growth of the investigated test strains.