Triterpene glycosides and their genins fromThalictrum foetidum. IV. Structure of cyclofoetigenin B

A glycoside isolated from the epigeal part ofThalictrum foetidum (Ranunculaceae) has yielded a new genin — cyclofoetigenin B — the structure of which has been established on the basis of chemical transformations and spectral characteristics as 24S-cycloartane-3,16,24,25,30-pentaol.Irkutsk Institute of Organic Chemistry of the Siberian Branch of the Academy of Sciences of the USSR. Institute of the Chemistry of Plant Substances of the Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 312–320, May–June, 1986.     

Triterpene glycosides and their genins fromThalictrum foetidum. II. The structure of cyclofoetigenin A

A glycoside isolated from the epigeal parts ofThalictrum foetidum (Ranunculaceae) has yielded a new genin — cyclofoetigenin A, the structure of which has been established on the basis of chemical transformations and spectral characteristics as 24S-cycloartane-3,16,25,25-tetraol.Irkutsk Institute of Organic Chemistry, Siberian Branch, Academy of Sciences of the USSR. Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 370–375, May–June, 1985.     

Phytoecdysteroids of plants of the genus Melandrium

The isolation and determination of the structure of the new phytoecdysteroid melandroside A are described; it is viticosterone E 22-O--D-galactopyranoside.Institute of Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 517–520, July–August, 1991.     

A chemical study of plants of the Mongolian flora lariside — A new scopoletin glycoside fromSalsola laricifolia

A new coumarin glycoside lariside — C₂₁H₂₆O₁₃, mp 155–156°C (from methanol) — has been isolated from the epigeal part ofSalsola laricifolia Turcz. et Litw. On the basis of acid hydrolysis and spectral characteristics the structure of lariside has been established as 7-[O--D-apiofuranosyl-(1 2)--D-glucopyranosyloxy]-6-methoxy-2H-1-benzopyran-2-one.Institute of Chemistry, Academy of Sciences of the Mongolian Peoples' Republic, Ultan-Bator. Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 288–291, May–June, 1986.     

Triterpene glucosides of Dipsacus azureus. III. Structure of dipsacobioside

A new triterpene glycoside — dipsacobioside — has been isolated from the root of theDipsacus azureus Schrenk. By chemical transformation and spectral methods its structure has been established as hederagenin 3-O-[O--L-rhamnopyranosyl-(14)--L-arabinopyranoside].Institute of Organic Chemistry, Kirgiz SSR Academy of Sciences, Frunze. Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 204–207, March–April, 1989.     

Synthesis of tritium-labeled phytohormones

A method has been developed for obtaining tritium-labeled analogues of -indolylacetic acid and of 6-benzylaminopurine by the method of isotopic catalytic exchange. The localization of cytokinin- and auxin-binding proteins in cotton seedlings has been investigated.A. S. Sadykov Institute of Bioorganic Chemistry, Uzbekestan Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 699–702, November–December, 1992.     

β,β-Dimethylacrylic acid

A method has been developed for obtaining ,-dimethylacrylic acid from 3-methylbut-3-en-1-ol — a multitonnage product of the production of isoprene by the Prins method.Institute of Organic Chemistry, Academy of Sciences of the Armenian SSR, Erevan. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 313–314, May–June, 1991.     

A new quercetin diglycoside from Campanula glomerata

Summary A new quercetin diglycoside — campanuloside — has been isolated from the herbage ofCampanula glomerata L., and for it the structure of quercetin 3-O--D-galactopyranoside-7-O--D-glucopyranoside has been proposed.Leningrad Institute of Pharmaceutical Chemistry. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 134–136, March–April, 1975.     

Features of the synthesis of proteins in the digestive organs of animals under the action of some toxic chemicals

The influence on protein synthesis of toxic chemicals in the digestive organs on single and repeated administration has been studied. It has been shown that the actions of Harvade F25, -sum, and T-86 on protein synthesis are different. Toxic chemicals change the levels not only of ribosomal but also of nuclear protein synthesis.The materials of this paper were presented at the Second International Symposium on the Chemistry of Natural Compounds (SCNC, Eskiehir, Turkey, October 22–24, 1996).Tashkent Pediatric Medical Institute. A. S. Sadykov Institute of Bioorganic Chemistry, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (3712) 162 70 71. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 205–208, March–April, 1998.     

Triterpene saponins fromThalictrum minus. V. Structure of thalicoside B

The epigeal part ofThalictrum minus L. has yielded a new bidesmoside — thalicoside B — which has the structure of oleanolic acid 28-O--D-glucopyranoside 3-O-[O--L-rhamnopyranosyl-(1 2)-O--D-glucopyranosyl-(1 3)--L-arabinopyranoside].Irkutsk Institute of Organic Chemistry, Siberian Branch, Academy of Sciences of the USSR; A. A. Zhdanov Irkutsk State University; and Pacific Ocean Institute of Bioorganic Chemistry, Far Eastern Scientific Center, Academy of Sciences of the USSR, Vladivostok. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 670–676, September–October, 1985.     

Quinoid pigments of echinodermata VII. Anthraquinones of the starfishHenricia leviuscula

Summary A preliminary study has been made of starfish of the family Echinasteridae for their content of anthraquinone pigments.A sulfated anthraquinone — the Na salt of isorhodoptilometrin 2-sulfate has been isolated from the starfishHenricia leviuscula.Pacific Ocean Institute of Bioorganic Chemistry, Far Eastern Scientific Center of the Academy of Sciences of the USSR, Vladivostok. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 148–151, March–April, 1979.     

Phytoecdysteroids of plants of the genus Silene. XVIII. 2-Deoxyecdysterone 20,22-monoacetonide from Silene brahuica

In addition to the known 2-deoxy--ecdysone, 2-deoxyecdysterone, 2-deoxy--ecdysone-22-O-acetate, ecdysterone, integristerone A, and sileneoside A, B, and C, the new ecdysteroid 2-deoxyecdysterone 20,20-monoacetonide has been isolated from the roots of the plantSilene brahuica Boiss.Institute of Chemistry of Plant Substances Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 241–244, March–April, 1991.     

Polysaccharides ofPolygonatum. VI. A study of the structure of a glucomannan fromPolygonatum sewerzowii by13C NMR spectroscopy,electron microscopy,and x-radiography

A phytoecdysteroid, sileneoside D, has been isolated from the roots ofSilene brahuica Boiss. and it has been shown to be ecdysterone 3-O--D-galactopyranoside.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 741–744, November–December, 1984.     

Structure of delphoside — A new isocoumarin glycoside

Summary A spectrophotometric method for determining cymarin and k-strophanthin- in the epigeal part ofAdonis chrysocyathus has been developed.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 747–749, November–December, 1972.     

Synthesis of mevalonolactone from 4-(β-hydroxyethyl)-4-methyl-1,3-dioxane

A method has been developed for obtaining mevalonolactone and 3-hydroxy-3-methylglutaric acid from an industrial waste, 4-(-hydroxyethyl)-4-methyl-1,3-dioxane.Institute of Organic Chemistry, Academy of Sciences of the Armenian SSR, Erevan. Translated from Khimiya Prirodnykh Soedenii, No. 1, pp. 31–32, January–February, 1990.     

Phytoecdysteroids of Rhaponticum carthamoides III. Rhapisterone C

A new ecdysteroid, rhapisterone C, has been isolated from seeds of the plantRhaponticum carthamoides (Willd) Iljin (family Compositae). It has been shown that rhapisterone C is 23-ethylecdysterone.Institute of Chemistry of Plant Substances, Uzbekistan Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 231–233, March–April, 1992.