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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]