Separation of the alkaloids deoxypeganine,peganol, and deoxyvasicinone by the HPLC method

Institute of Chemistry of Plant Substances Academy of Sciences of the Uzbek SSR, Tashkent. Scientific Center for Chromatography, Academy of Sciences of the Uzbek SSR. Institute of the Chemistry and Physics of Polymers, Academy of Sciences of the Uzbek SSR, Tashkent. Iranslated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 297–298, March–April, 1991.     

Glucofructans of Cousinia polycephala

Institute of Organic Chemistry, Kirghiz SSR Academy of Sciences, Frunze. Institute of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 427–429, May–June, 1989.     

Polysaccharides of subspecies of Cousinia

Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Institute of Organic Chemistry, Kirghiz SSR Academy of Sciences, Frunze. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 750–751, September–October, 1988.     

Synthesis and membrane activity of new derivatives of 2,3-benzo-18-crown-6

The acylation of 2,3-benzo-18-crown-6 with carboxylic acids in the presence of polyphosphoric acid has given new acyl derivatives which have been reduced to the corresponding alkyl derivatives. The ionophoric activities of the compounds have been investigated on mitochondrial membranes.Institute of Biochemistry, Academy of Sciences of the Uzbek SSR, Tashkent. Institute of Bioorganic Chemistry, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 634–637, September–October, 1983.     

11,13-Dihydroarteglasin A — A new guaianolide from Artemisia argyi

Institute of Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Tashkent Agricultural Institute. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 555–556, July–August, 1990.     

Isolation and antibiotic properties of cis-hexadeca-4,7,10,13-tetraenoic acid from the algaScenedesmus obliquus UA-2-6

Summary By the method of checking antibiotic activity, conditions have been selected for the isolation of cis-hexadeca-4,7,10,13-tetraenoic acid from the fatty-acid fractions of the lipids ofScenedesmus obliquus UA-2-6. Its structure has been confirmed and it has been established that this acid possesses a broad spectrum of antibiotic action.Institute of Microbiology, Academy of Sciences of the Uzbek SSR, Tashkent. Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 379–385, May–June, 1978.     

Effect of the irradiation of cotton seeds with pulses of concentrated light on the composition of the cottonseed oil

The presowing irradiation of cotton seeds with pulses of concentrated light (PCL) causes a change in a number of indices of the oil. When the seeds are stored, oxidative processes in them are intensified. In the oil of the harvested seeds some indices are restored.Institute of the Chemistry of Plant Substances of the Academy of Sciences of the Uzbek SSR, Tashkent, and S. V. Starodubtsev Institute of Technical Physics of the Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 777–780, November–December, 1980.     

Difference-perturbation spectra of iodotyrosines and iodothyronines in polyethyleneglycols

The difference-perturbation absorption spectra of monoiodotyrosine, diiodotyrosine, triiodothyronine, and thyroxine with low- and high-molecular-mass polyethyleneglycols as perturbants have been measured and characterized. The SDP spectra, and their intensity and the position of the main maximum depend on the number of iodine atoms and the state of ionization of the hydroxyl in accordance with their electron-accepting properties.Institute of Physiology, Uzbek SSR Academy of Sciences, Tashkent. Institute of Biochemistry, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, Vol. 6, pp. 840–845, November–December, 1989.     

Flavonoids of Lagonychium farctum

Tashkent Pharmaceutical Institute. Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 274–276, March–April, 1990.     

Stereospecific analysis of the triacylglycerols of a cottonseed oil hydrogenate and its fractions

A cottonseed oil hydrogenate has been fractionated into three fractions: high-melting, medium-melting, and liquid. It has been established that the fat of the second fraction, because of its physicochemical indices, consistency, and the distribution of the saturated fatty acyl radicals in the extreme positions of the TAG molecules, can be regarded as a cocoa butter substitute.Institute of the Chemistry of Plant Substances of the Uzbek SSR Academy of Sciences, Tashkent. Institute of Bioorganic Chemistry of the Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 509–513, July–August, 1987.     

Structure of the product of the reaction of 6-dehydroeldelidine with sodium in liquid ammonia

Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Abu Ali ibn Sina [Avicenna] Tashkent State Medical Institute, Dushanbe. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 279–281, March–April, 1990.     

Syntheses based on β-phenylethylamines. II. Preparation of N-(2-methoxybenzyl)-3,4-dimethoxyphenethylamine

Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 281–282, March–April, 1990.     

Method for quantitative determination of allapinine in Aconitum leucostomum

Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 436–438, May–June, 1989.     

Lipids of Rumex confertus

Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 284–285, March–April, 1989.     

Study of the lignin of the cotton plant of variety C-4880 by the method of acidolytic cleavage

Institute of Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 567–568, July–August, 1990.     

Alkaloids of Nitraria komarovii XII. Tetramethylenetetrahydro-β-carboline N-oxide

Institute of Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 560–561, July–August, 1990.     

Monitoring the quality of the preparation allapinin by high-performance liquid chromatography

Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 129–130, January–February, 1990.     

Polysaccharides ofEremurus. XXIV. Pectin substances ofEremurus and dynamics of the accumulation of pectin inEremurus lactiflorus

Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 109–110, January–February, 1990.     

Analysis of the hemorrhagic principle of the venom of Echis multisquamatus

Institute of Biochemistry, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 438–439, May–June, 1989.     

Comparative study of the cytotoxins of the venom of the central asian cobraNaja naja oxiana by the intrinsic-fluorescence method

The intrinsic fluorescence of cytotoxin V_C1 and V_C5 from the venom of the Central Asian cobra due to the tyrosine residues and differing with respect to quantum yield for these two polypeptides because of the nonidentity of the microenvironments of the tyrosyl residues has been measured and characterized. The dependence of the quantum yield on the pH and the temperature also indicate this nonidentity.Institute of Bioorganic Chemistry, Academy of Sciences of the Uzbek SSR, Tashkent. Institute of Biochemistry, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 226–228, March–April, 1986.