New methods for the synthesis of 2-(2,2,2-trichloroethoxy)-(3,4,6-tri-O-acetyl-1,2-dideoxy-α-D-glucopyrano)-[2,1-d]-2-oxazoline and its use for stereo-, chemo- and regioselective glycosylation.

New methods for the synthesis of the title oxazoline 2 from the corresponding 2-deoxy-2-(2,2,2- trichloroethoxycarbonylamino)glucosyl bromide were developed. The target 2-(2,2,2-trichloroethoxy) gluco-[2,1-d]-2-oxazoline 2 can be synthesized under conditions of halide ion catalysis, using triethylamine as a base. The synthesized 2-(2,2,2-trichloroethoxy)-2-oxazoline glycosyl donor was used for stereo-, regio-, and chemoselective glycosylation reactions under extremely mild conditions.

The study of the acid-catalyzed reaction between 2-methyl and 2-(2,2,2-trichloroethoxy) gluco-[2,1-d]-2-oxazolines. Synthesis of macrocyclic pseudo-tetrasaccharide derivative of d-glucosamine.

The formation of macrocyclic pseudo-tetrasaccharide derivative of d-glucosamine as a result of the acid-catalyzed reaction between 2-methyl- and 2-(2,2,2-trichloroethoxy)-substituted oxazoline derivatives of sugars was discovered. The structure of the obtained product was determined using NMR spectroscopy and mass spectrometry. An explanation of the obtained results based on the mechanism of the reaction of electrophilic polymerization of 2-substituted glyco-[2,1-d]-2-oxazolines and the principle of hard and soft acids and bases (HSAB) was proposed.

[A cytomorphological basis for the correction of radiation-induced immunodeficiencies and hematopoietic depression using thymus and bone marrow peptides].

The correction of radiation-induced immunodeficiency and hematopoiesis depression in clinical setting (100 patients) and in experiments (160 animals) by peptide preparations of the thymus and bone marrow (thymalin, hemalin, thymogemine and synthetic thymalin analog thymogen) has been studied. Administration of the bone marrow and thymus recovery of damage to the thymus, bone marrow, spleen and lymph nodes, improved the function of circulating neutrophilic granulocytes. Thymalin was able to compensate for immune disturbances and reduce manifestations of asthenia.

[The clinico-epidemiological efficacy of thymogen in acute respiratory viral infections in a military collective].

This study gathers the results of epidemiological examination in training military unit, making evaluation of prophylactic efficiency of timogen, i.e. synthetic peptide of thymus for flu and other acute respiratory infections (ARI).

[Thymogen in the complex treatment of inflammatory diseases of the female genital system].

Thymogen, a new immunomodulating drug made in this country, was used in combined therapy of 46 patients with acute endomyometritis, exacerbations of chronic salpingo-oophoritis, purulent tubo-ovarian formations. Thymogen therapy was conducive to normalization of lymphocyte counts, absolute counts of T and B lymphocytes, increase of T lymphocyte functional activity. The drug is characterized by a desensitizing effect and induces no complications.

[The biochemical and immunological indices in the rehabilitation period of the victims of the accident on the Komsomolets atomic submarine].

Biochemical and immunological indexes of peripheral blood were compiled in military sanatorium "Divnomorskoe" in seamen who have suffered from general supercooling in the result of "Komsomolets" atomic submarine breakdown. The patients had the symptoms of metabolic disturbance, immunodepression, a great concentration of proteins in acute phase and activity of MB-fraction of creatine phosphokinase. Immunodepression after the general supercooling was mainly conditioned by oppression of differentiation, metabolic changes and functional activity of T-lymphocytes.

[Correction with thymic and bone marrow peptides of radiation injuries of immuno- and hemopoiesis].

Exposure of an organism to ionizing radiation causes a drastic decrease of immunity and nonspecific resistance as well an impairment of haemopoiesis. Peptide preparations from the thymus and bone marrow normalize the immunological reactivity and haemopoiesis of irradiated animals. Their mixture favors the recovery of haemopoiesis and immunogenesis after irradiation.

[Immunologic status of alcoholic patients with pulmonary tuberculosis].

Monoclonal antibodies were used to study the T and B immunity systems in 60 alcoholic patients suffering from pulmonary tuberculosis. The patients with that combined pathology demonstrated marked immunodeficiency as regards the T system and an increase of humoral immunity. It is assumed that one of the main causes of immunodeficiency lies in the blockade of the differentiation of T cells at the stage of T prothymocytes.

[The cytomorphological characteristics of hemopoiesis and of the organs of immunogenesis in exposure to thymus and bone marrow peptides during hematopoietic depression].

The effects of thymic peptide (thymalin), bone marrow peptide (haemalin) and a complex compound (thymohaemin) on the haematopoiesis and immunity were studied in the experimental model of the induced haematopoiesis depression. Lymphopoiesis stimulation in the bone marrow was provoked by thymalin and granulopoiesis stimulation by haemalin. Simultaneously the restoration of a number of both T- and B-lymphocytes in the thymus was observed.

[Effect of thymalin on the thymus and immunologic indices of irradiated animals].

The intramuscular injection of thymaline (1 mg/kg/day during 5 days) enhanced the regenerative processes in the thymus and favored the normalization of some immunological indices of irradiated guinea pigs.