Use of the paramagnetic shift agent Eu(DPM)3 for studying the structure and stereochemistry of conferol and conferone

Summary A spectrophotometric method is proposed for determining the content of aspidin in a crystalline powder and in the rhizomes of the fernsDryopteris spinulosa (M),D. phegopteris (L.), andD. fragrans (L.) Schott.All-Union Scientific-Research Institute for Medicinal Plants. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 684–687, November–December, 1970.     

Investigation of the protein component of the lipopolysaccharide-protein complex ofYersinia pseudotuberculosis

It has been established by electrophoresis in polyacrylamide gel that the protein component of the lipopolysaccharide-protein complex ofYersinia pseudotuberculosis consists of two poly-peptides with molecular weights of 42,000–45,000 and 18,000–20,000. These polypeptides have been detected in the cell wall ofY. pseudotuberculosis as the main components. Protein fractions B-2 and B-3, differing with respect to solubility in phenol, were isolated from the LPPC ofY. pseudotuberculosis by extraction with hot 45% phenol. These protein fractions had the same polypeptide composition, which is characteristic for membrane proteins. B-3 included the LPS component and B-2 contained lipid A or fragments of it as impurity. Fractions B-3 and B-2 precipitated with antiserum to the LPPC.Pacific Ocean Institute of Bioorganic Chemistry of the Far Eastern Scientific Center, Academy of Sciences of the USSR, Vladivostok. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 92–97, January–February, 1980.     

The structure of the sesquiterpene lactone saupirin

Conclusions A new sesquiterpene lactone, saupirin, has been isolated from the epigeal green part ofSaussurea neopulchella Lipsch. andSaussurea pulchella Fisch., and structure (I) has been proposed for it.All-Union Scientific-Research Institute for Medicinal Plants. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 727–736, November–December, 1971.     

Oxygenated acids of the reserve lipids of Rumex paulsenianus

The composition of the fatty mono- and dihydroxy acids of the fruit ofRumex paulsenianus Rech. fil. (familyPolygonaceae) has been determined by a combination of IRS, UVS, GLC, and mass-spectrometric methods. (22) Monohydroxy acids of the C₁₄–C₂₀ series, including isomers and isologues, and four dihydroxy acids from C₁₈ to C₂₀, including a new isomeric 9-OH-10, 12–17:2 acid have been detected.Institute of the Chemistry of Plant Substances, Uzbek Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 762–765, November–December, 1991.     

The seed oils of some species of the family Cruciferae

Summary The physicochemical properties of the oils of the seeds of seven plants of the family Cruciferae —Cakile maritima, Sisymbrium altissimum, Sisymbrium Loeselii, Descurainia Sophia, Erysimum cheiranthoides, Brassica amoracioides andCrambe pontica — have been studied and their fatty acid compositions have been determined. The results obtained showed no marked differences from those given in the literature.Zaporozhe Medical Institute. Ukrainian Scientific-Research Institute of the Oils and Fats Industry. Zaporozhe Oils and Fats Combine. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 15–18, January–February, 1973.     

The polybuffer separation of the alkaloids of Vinca erecta

Summary By separating the total alkaloids ofV.erecta according to their basicities in an APS, in addition to bases known previously we have isolated ervincidine, apovincamine, (+)-quebrachamine, dl-eburnamine, (–)-1,2-dehydroaspidospermidine, and kopsanone. This is the first time that these alkaloids have been obtained from this plant. Thin-layer chromatography showed the presence of another 10–12 uncharacterized alkaloids.The region of the passage into the buffer solutions of some alkaloids has also been established.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 713–717, November–December, 1970.     

Oils of the seeds of Ziziphora pedicellata and Eremostachys molluceloides

Summary The fatty oils of the seeds of the wild speciesZiziphora pedicellata andEremostachys molluceloides (Labiatae) have been investigated. The glyceride, pigment, and hydrocarbon compositions of these oils and the fatty-acid composition of the oil ofZ. pedicellata have been determined.The oil ofE. molluceloides contains laballenic acid.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 324–328, May–June, 1975.     

Compounds of the pyran series as components of the essential oils ofTanacetum boreale andAjania fastigiata

It has been established that the essential oils ofTanacetum boreale andAjania fastigiata contain as their main components 3-hydroxy-2,2,6-trimethyl-6-vinyltetrahydropyran and its acylated and oxidized derivatives.Institute of Chemical Sciences, Academy of Sciences of the Kazakh SSR, Alma-Ata. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 332–335, May–June, 1985.     

Synthesis of the racemic alkaloid diptaline

The isolation from the plantDipthychocarpus strictus (Cruciferae) of the optically active base diptaline, identified as N-(11-methylsulfinylundecyl)urea, has been reported [1]. A synthesis of the racemic form of this alkaloid has now been achieved.Institute of Organic Chemistry, Urals Branch, Russian Academy of Sciences, Ufa. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 102–105, January–February, 1992.     

Analysis of the nerve growth activities of protein fractions from the venoms of Agkistrodon halys halys and Echis multisquamatus

The possibility has been shown of obtaining NGFs in the process of isolating coagulant proteinases and other biologically active substances from the venoms of theAgkistrodon halys halys and theEchis multisquamata. Results characterizing the NGFs of both species as basic (weakly basic) proteins with molecular masses of 30.0–40.0 kDa are presented.Institute of Biochemistry, Uzbekistan Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 266–270, March-April, 1992.     

A study of the process of lignification of one-year willow wood

Conclusions 1. The content of lignin in the wood ofSalix viminalis andSalix acutifolia increases with the growth of the shoots during shortened days and also in drier climatic periods.2. The monosaccharides, glucose, fructose, and arabinose take part in the synthesis of the lignin of young wood ofSalix viminalis andSalix acutifolia. The formation of lignin of one-year willow wood takes place from May to January (with a maximum in June–July). The content of methoxyl groups in it gradually rises.Khimiya Prirodnykh Soedinenii, Vol. 5, No. 6, pp. 546–550, 1969     

Quantitative determination of triterpenoids of the dammarane series by the densitometry of thin-layer chromatograms

Summary Using the optical densitometry of thin-layer chromatograms, the amounts of triterpenoids of the dammarane series have been determined in the unsaponifiable fractions of ethereal extracts from the leaves of Far Eastern species of birch:Betula costata, B. mandshurica, B. dahurica, B. platyfolia, andB. kamtschatica. Pacific Ocean Institute of Bioorganic Chemistry, Far Eastern Scientific Center, USSR, Vladivostok Academy of Sciences. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 349–353, May–June, 1977.     

Terpenoids of the oleoresin of Pinus pumila

Summary 1. The composition of the acid fraction of the oleresin ofPinus pumila (Pall.) Regel. has been studied, and from it has been isolated, in addition to known compounds, the methyl ester of a new labdane acetoxy acid.2. In the hydrocarbon fraction of the oleoresin 11 monoterpenes and 26 sesquiterpenes have been found (and 17 of the latter have been identified).3. The composition of the fraction of neutral oxygen-containing diterpenoids fromP. pumila differs considerably in its diterpenoid components from the corresponding fractions of the oleoresins of botanically related species-P. sibirica andP. koraiensis. Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Academy of Sciences of the USSR. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 299–302, May–June, 1976.     

The structure of arnifolin

Summary Structure (I) is proposed for arnifolin — a sesquiterpene lactone fromArnica foliosa Nutt. andArnica montana L.All-Union Scientific-Research Institute for Medicinal Plants. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 270–272, May–June, 1971.     

Structure of the glycosides of Asparagus officinalis

Summary From the culture liquid of the mutant strains 47 and 48 ofAct. olivovariabilis a new o-naphthoquinone — olivovarin — has been isolated. Structure (I) is proposed for it.All-Union Scientific-Research Institute of Antibiotics. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 339–344, May–June, 1975.     

Alkaloids of Rauwolfia species growing in Vietnam

Reserpine, ajmaline, serpentine, ajmalicine, isoreserpiline, and other alkaloids have been isolated from the roots ofRauwolfia cambodiana Pierre ex Pitard,R. verticillata Baill. andR. serpentina Benth.R. vomitoria Afz. was the richest in alkaloids.Leningrad Institute of Pharmaceutical Chemistry. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 813–816, November–December, 1991.     

Insect pheromones and their analogs. XLVII. Synthesis of 11-oxododeca-3,6-diynoic acid — The acyclic precursor of a macrolide component of pheromones of Oryzaephilus mercator and O. Surinamensis

A new approach is proposed to the synthesis of 11-oxododeca-3,6-diynoic acid — the acyclic precursor of a macrolide component of pheromones ofOryzaephilus mercator andO. surinamensis — from the readily available tetrahydropyran or allylacetone via the intermediate 5-bromo-2,2-ethylenedioxypentane.Institute of Organic Chemistry, Urals Division, Russian Academy of Sciences, Ufa. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 288–292, March–April, 1993.     

Comparative study of the total tRNAs of the seeds of the cotton plant and the seeds ofGinkgo biloba

Summary 1. Three methionine tRNAs have been found both in the total tRNAs of cotton seeds and in those ofGinkgo biloba. In both cases only the first was acylated by methionine with the aid ofE. coli ARSases.2. Four phenylalanine tRNAs have been found in the total tRNAs of cotton seeds, and two in the tRNAs of ginkgo seeds.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 54–56, January–February, 1979.     

Synthesis of dodec-5E-en-1-ol — The pheromone of Tricimba cincta — And tetradec-5E-1-yl acetate — An imitator of the pheromone of Rhynchopacha sp.

On the basis of a modified Knoevenagel reaction starting from octanol and decanal, the stereodirected synthesis has been effected of dodec-5E-en-ol (the pheromone of the grass flyTricimba cincta — and tetradec-5E-en-yl acetate) an imitator of the pheromone of the mothRhynchopacha sp. A. S. Sadykov Institute of Bioorganic Chemistry, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 129–132, January–February, 1991.     

Phospholipase A2 from the venom of the spider Eresus niger

A phospholipase A₂ with a molecular mass of 12–14 kDa has been isolated from the venom of the spiderEresus niger by three-stage column chromatography. Asparagine has been identified as the N-terminal amino acid.Institute of Physiology, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 557–560, July–August, 1991.