Steroid alkaloids of the plant and animal Kingdoms

This review, which covers the literature for 1988–1996, gives new information on the occurrence of steroid alkaloids in Nature and discusses ecological and biogenetic aspects of their study.Deceased.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (371) 120 64 75. Translated from Khimiya Prirodnykh Soedinenii, No. 2 pp. 131–168, March–April, 1999.     

Synthesis of protoberberine alkaloids

In this review an analysis is made of literature information on the synthesis of protoberberine alkaloids during 1980–1990.Institute of Chemistry of Plant Substances, Uzbekistan Republic Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 449–468, September–October, 1992.     

Berberis alkaloids

This review systematizes literature information on alkaloids of plants of the genusBerberis. The main chemical and spectral methods of establishing their structures, and also their pharmacological properties, are considered. The review includes literature sources up to 1992.Andizhan State Medical Institute. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 481–506, July–August, 1993.     

Higher Nuclearity Rhenium Halide Clusters That Contain Re–Re Multiple Bonds

The discovery that the rhenium chloride cluster Re₃Cl₉ and its chloro-anion [Re₃Cl₁₂]^3- contain a triangular cluster of Re atoms and Re–Re bond orders of two was first reported in 1963. This led very quickly to the report by F. A. Cotton of the first species with a metal–metal quadruple bond, namely, the [Re₂Cl₈]^2- anion. While the field of dinuclear multiple bond chemistry has undergone explosive growth in the last 40 years, that involving the chemistry of higher nuclearity clusters with metal–metal multiple bonds is much more limited. One of the relatively few exceptions is encountered with the aforementioned rhenium halides that contain the triangular [Re₃]⁹⁺ core. In the present review, the synthesis, structures and reactivity of these halide clusters and those of higher nuclearity that contain Re–Re multiple bonds are surveyed. This article provides a comprehensive review of the literature covering the 40 year period 1963–2003.     

Brassinosteroids in the vegetable kingdom

This review gives literature information on the structure of brassinoids, which are natural plant growth regulators, and on their distribution in plants and their structure-biological activity relationships.Institute of Bioorganic Chemistry, Academy of Sciences of the Belorussian SSR, Minsk. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 159–173, March–April, 1991.     

Triterpenoids of the cycloartane series

In this review on triterpenoids of the cycloartane series, new achievements in this field of natural compounds are considered, the literature up to 1983 and, in part, 1984 being covered.Institute of Chemistry of Plant Substance, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 431–478, July–August, 1985.     

Phenol glycosides of the coumarin series

In this review, literature information on phenol glycosides of the coumarin series is systematized. Questions of the structural analysis of natural compounds by chemical and spectral methods are discussed. Facts are given about 63 phenyl glycosides of the coumarin series isolated from various plants.Institute of Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 577–592, September–October, 1990.     

Phytoecdysteroids of plants of the genusAjuga and their biological activity 1. Distribution and chemical structures of the compounds isolated

In this review, literature information on the structures of phytoecdysteroids, their distribution in plants, and their biological activities is generalized.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, Fax (3712) 62 73 48. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 152–160, March–April, 1994.     

Methods of isolating alkaloids of the colchicine series

This review considers methods for the isolation of colchicine, colchamine, and colchicoside. The literature for the period from 1884 to 1997 has been used.I. G. Kutateladze Institute of Pharmacochemistry, Academy of Sciences of the Georgian SSR, Tbilisi. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 592–600, September–October, 1990.     

Recent advances in the chemical synthesis of ecdysteroids and compounds related to them

This review generalizes information on methods of synthesizing ecdysteroids and substances structurally close to them published in the literature during the last decade.Institute of Bioorganic Chemistry, Belarus Academy of Sciences, 220141, Belarus', Minsk, ul. Zhodinskaya, 5/2. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 655–682, September–October, 1997.     

Oxygen-containing terpenoids of the 1,1,4-trinethylcycloheptane series

This review, which covers the literature up to 1992, gives information on the occurrence in nature, the practical use, the synthesis, and the chemical transformations of oxygen-containing terpenoids of the 1,1,4-trimethylcycloheptane series.Institute of Physical Organic Chemistry of the Belarus Academy of Sciences, Minsk. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 511–525, July–August, 1995. Original article submitted November 10, 1993.     

Vegetable tanning substances. Dependence of the tanning properties of extracts on their composition

Information is given on vegetable tanning substances, their classification, distribution in the plant world, and structure, and the dependence of their tanning properties on their composition, and also on methods of enriching tanning extracts. The review of literature sources includes publications from 1950 to 1989.A. S. Sadykov Institute of Bioorganic Chemistry, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 293–307, May–June, 1990.     

Viscosity B-coefficients of the aqueous cyanide and azide ions

A number of factors have led us to re-examine the literature assignments of the viscosity B-coefficients of the individual cyanide and azide ions in aqueous solutions at 25°C. The revised values, obtained from mutually confirmatory correlations, are: B(CN^–)=–0.020±0.007 and B(N ₃ ^– )=–0.014#±#0.006>dm³-mol^–1     

Diterpenoids of the clerodane series

The review considers advances in the field of the study of natural clerodane diterpenoids, with coverage of the literature up to February, 1985.Deceased.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 169–185, March–April, 1987.     

Progress in the chemistry of the cycloartanes

The review, which considers advances in the chemistry of the cycloartanes, covers literature devoted to compounds of plants of the genusAstragalus and other publications appearing in the period from 1984 to 1987 and, in part, 1988.Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 156–175, March–April, 1989.     

Flavolignans and other natural lignoids: Problems of structural analysis

In this review, literature information on natural lignoids — flavolignans, xanthonolignans, coumarinolignans, and neolignans — is systematized. Questions of the structural analysis of this group of natural compounds are discussed.All-Union Scientific-Research Institute of Medicinal Plants, Moscow. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 11–35, January–February, 1987.     

Chemical transformation of ecdysteroids: Latest advances

In this review the results of chemical transformations of ecdysteroids reported in the literature during 1986–1996 are discussed.Institute of Bioorganic Chemistry of the Belarus Academy of Sciences, 220141, Minsk, Zhodinskaya, 5/2. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 139–160, March–April, 1998.     

Synthesis of the hexapeptides glycyl-L-valyl-L-seryl-L-prolyl-L-lysyl-L-leucine

Summary The synthesis of the methyl ester of the hexapeptide N-Cbo-glycyl-L-valyl-L-seryl-L-prolyl-N-tos-L-lysyl-L-leucine, not described in the literature, has been affected.T. G. Shevchenko Kiev State University. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 41–43, January–February, 1975.     

Isolation and purification of alkaloids

A literature review is given of methods of isolating and purifying alkaloids. Material is collected on the influence of the nature of the solvent on the isolation of alkaloids and on the interaction of alkaloids with acids and alkalis.All-Union Scientific-Research Institute of Medicinal Plants, Moscow. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 415–429, July–August, 1983.     

Glucans of higher plants

This review gives literature information on the glucan polysaccharides of higher plants, excluding glucans of the type of starch and cellulose.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (3712) 40 64 75. Translated from Khimiya Prirodnykh Soedinenii, Vol. 33, No. 1, pp. 3–15, January–February, 1997.