Berberis alkaloids. XVII. Investigation of the alkaloids of Berberis heteropoda

The alkaloid composition of young shoots and leaves ofBerberis heteropoda Schrenk has been studied. In addition to known alkaloids, two new ones have been isolated — N-methyldihydroberberine and 8-oxoberberrubine, the structures of which were established by chemical transformations and a study of spectral properties. Of known alkaloids, berbamunine, aromoline, glaucine, thalicmidine, isocorydine, and reticuline have been found in this plant for the first time. Pseudopalmitine and laudanosine have been found for the first time in plants of the genusBerberis.Andizhan State Medical Institute. Institute of the Chemistry of Plant Substances of Uzbek Republic Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 53–59, January–February, 1993.     

Alkaloids of Haplophyllum bungei

The alkaloids dictamnine, skimmianine, folimine, robustinine, and 4-methoxy-2-quinolone, found for the first time in plants of the genusHaplophyllum and the new alkaloid haplobungine, for which the structure of 4,7,8-trimethoxy-2-quinolone has been established, have been isolated from the epigeal part of the plantHaplophyllum bungei Trautv. growing in the Moiynkumy desert, Chimkent province, Kazakh SSR.Institute of Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 23–25, January–February, 1989.     

GC-MS analysis of total diterpene alkaloids from roots of Aconitum septentrionale

For the first time, using a MS 25RF chromato-mass spectrometer with a Carlo Erba 5160 chromatograph and a packed column, the possibility of the partial separation of the mixture of diterpene alkaloids of various types from the roots ofAconitum septentrionale has been shown. From their chromatographic parameters and mass-spectral characteristics 18 bases have been detected, including a new one with M⁺ 407 which was probably deoxydelcorine, while 6-O-methyldelcorine and 6-O-methyleldelidine have been found in plants for the first time.Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodynkh Soedinenii, No. 4, pp. 538–543, July–August, 1989.     

Berberis alkaloids. XXIII. Structure of turcberine

Berberine, magnoflorine, palmatine, columbamine, jatrorhizine, epiberberine, berbamine, O-methylisothalicberine, armepavine, corypalline, glaucine, and corydine and the new alkaloid turcberine have been isolated fromBerberis turcomanica Kar., and the structure of turcberine has been established. Apart from berberine, this is the first time that any of these alkaloids have been isolated from this species of barberry, while this is the first time that corydine and armepavine have been isolated from the genusBerberis.Institute of Chemistry of Plant Substances, Uzbekistan Republic Academy of Sciences. Tashkent. Andizhan State Medical Institute. Translated from Khimiya Prirodnykh Soedeninii, No. 1, pp. 77–81, January–February, 1993.     

Alkaloids of Papaver fugax

Papaver fugax growing on the shore of Lake Kazenoi Am in the Checheno-Ingushskii ASSR at the boundary with the Dagestan ASSR has yielded 0.39% of alkaloids. Seven alkaloids have been isolated, of which cheilanthifoline, scoulerine, and reticuline have been detected in this species for the first time, while it is the first time that d-remeroline has been found in a plant of thePapaver genus.Pyatigorsk Pharmaceutical Institute. Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 559–562, July–August, 1988.     

Lipids of the fruit of Rumax paulsenianus

The lipids of the fruit ofRumex paulsenianus have been investigated. The lipid content of the seeds was 7.8% and of the perianths 0.58%. Of the 18 classes of lipids detected, 16, including anthraquinone pigments, were identified by CC and TLC and by UV and IR spectroscopies and mass spectrometry. The low-molecular-mass triacylgly-cerols dimyristoylacetin, dimyristoylcaproin, myristoylcaproylacetin, and hydroxylipids have been detected in the fruit of plants of the Polygonaceae family for the first time.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 604–611, September–October, 1990.     

Esters of Ferula karakalensis. Structure and stereochemistry of karaferin and karaferinin

Two new guaiane esters — karaferin and karaferinin — have been isolated fromFerula karakalensis, and their structures and stereochemistry have been established. It has been shown that theFerula sesquiterpene alcohols angrendiol, ugamdiol, and karaferol are biogenetically interconnected and are products of a single chain of the biogenesis of terpenoids in plants.Institute of Chemistry of Plant Substances, Uzbekistan Republic Academy of Sciences, Tashkent; Botanical Garden of Moscow State University. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 227–231, March–April, 1993.     

A comparative investigation of the fatty acid compositions of the seeds of a number of lines of a genetic collection of Gossypium hirsutum

A comparative analysis has been made of the amounts of lipids and their fatty-acid compositions in the seeds of the lines of agenetic collection of cotton plants of the speciesGossypium hirsutum and their hybrids and the variety Tashkent-1. The results obtained on the fatty-acid compositions of some hybrids make it possible to recommend the use of individual lines of cotton plants as donors for improving the food-value indices of cottonseed oil.Institute of Chemsitry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. V. I. Lenin Tashkent State University. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 173–176, March–April, 1991.     

The seed oil of Rindera oblongifolia

Summary The oil of the seeds ofRindera oblongifolia, family Boraginaceae, growing in Central Asia, has been studied for the first time. Among the acids of the triglycerides of the oil five types of monoenoic acid differing by the length of the carbon chain but having the same length of the terminal carbon chain — 18:1⁹, 20:1¹¹, 22:1¹³, 24:1¹⁵, and 26:1¹⁷ — have been detected for the first time. This is the first time that the last of these acids has been found in a seed oil of this family.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 26–29, January–February, 1976.     

Lipids of the biomass ofRuta graveolens, grownin vivo andin vitro

A lower content of chlorophylls, phospholipids, and linolenic acid and a higher content of rutin, carotenoids, and xanthophylls in the biomass ofRuta graveolens L. obtainedin vitro has been found as compared with these indices from the epigeal part of the plant grownin vivo.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent. Institute of Botany, Academy of Sciences of the Republic of Uzbekistan, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 651–655, September–October, 1993.     

2,10-Didemethylcolchicine — A new alkaloid from Merendera robusta

The alkaloid complex ofMerendera robusta Bge. (familyLiliaceae) growing in the Tashkent province of the Uzbek SSR has been investigated. The main alkaloids of this plant are colchicine and colchamine. Eleven tropolone alkaloids and their photochemical isomers have been isolated and identified. A new alkaloid of phenolic nature has been isolated for which the structure of 2,10-didemethylcolchicine has been established.V. I. Lenin Tashkent State University. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 67–71, January–February, 1991.     

Anthocyanins of Hibiscus cannabinus

Conclusions Two anthocyanin glycosides have been isolated from the flowers ofHibiscus cannabinus var. simplex. One of them is a new glycoside, which has been called cannabinin, and the second is the known glycoside myrtillin, this being the first time that it has been isolated from the flowers of Kenaf hemp.Scientific-Research Institute for the Chemistry and Technology of Cotton Cellulose, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 723–727, November–December, 1971.     

Lipids of the fruit ofAcanthopanax sessiliflorus

In the lipids of the seeds and pericarp of the introduced speciesAcanthopanax sessiliflorus (Rupr. et Maxim.) Seem (familyAraliaceae), 23 classes of compounds have been detected, of which 19 have been identified. Sixteen of the classes have been studied. The lipids of the pericarp contain a more complex set of components than the seeds. Hydroxyacyldiacylglycerides, fatty acid methyl esters, and a complex group of pthalicacidesters have been detected in the familyAraliaceae for the first time. The fatty acid compositions of the seed and pericarp lipids are characterized by a high level of petroselinic acid.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 760–766, November–December, 1985.     

Phytoecdysteroids of plants of the genus Silene. XIV. Ecdysterone 20-O-benzoate from Silene tatarica

A new ecdysteroid, which has proved to be ecdysterone 20-O-benzoate, has been isolated from the whole plantSilene tatatica (L.) Pers.Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 850–852, November–December, 1987.     

Alkaloids of Ziziphus jujuba the structure of juziphine and juzirine

Summary Six bases have been isolated from the leaves of the plantZiziphus jujuba Mill. family Rhamnaceae, cultivated in Tashkent: coclaurine, which has been isolated previously, and isoboldine, norisoboldine, asimilobine, which have been isolated for the first time, and the new juziphine and juzirine. It has been established that juziphine has the structure of 8-hydroxy-1R-(4-hydroxybenzyl)-7-methoxytetrahydroisoquinoline, and juzirine that of 7-hydroxy-1-(4-hydroxybenzyl)-6-methoxyisoquinoline.Juziphine has also been isolated from the epigeal part ofCorydalis gortschakovii.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 239–243, March–April, 1977.     

Structure of the alkaloid schoberine

The structure of an alkaloid of a new type, schoberine, isolated from plants of the genusNitraria has been established by the x-ray structural method as perhydro-1,10-propano-4a,8a-diazaphenanthrene. Its chemical and spectral properties have been studied.Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirondnykh Soedinenii, No. 1, pp. 30–34, January–February, 1989.     

Berberis alkaloids. XVI. Structure of berpodine

The alkaloid composition of young shoots ofBerberis heteropoda has been studied. Together with known alkaloids, we have isolated the new dimeric base berpodine and have established its structure by a study of spectral characteristics and by chemical transformations. The known alkaloid isotetrandrine has also been isolated from this plant, for the first time.Institute of Chemistry of Plant Substances Uzbekistan Republic Academy of Sciences, Tashkent. Andizhan State Medical Institute. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 264–267, March–April, 1993.     

Secondary metabolites of Pyricularia oryzae II. Polyketide metabolites

A number of exometabolites have been isolated from the deuteromycetePyricularia oryzae Cav., of which harman and O-demethyldiaporthin have been isolated from this species for the first time. The latter is the first example of a hexaketide from fungi of the genusPyricularia, for which only penta- and heptaketides have previously been described.All-Union Scientific-Research Institute of Phytopathology, Moscow. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 471–475, July–August, 1991.