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1.
A new alkaloid — leuconine — has been isolated from the epigeal parts ofAconitum leucostomum andA. septentrionale, and its structure has been established on the basis of spectral characteristics.
Institute of Chemistry of Plant Substances, Uzbekistan Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii,
No. 5, pp. 538–540, September–October, 1992. 相似文献
2.
U. A. Baltaev 《Chemistry of Natural Compounds》1991,27(6):712-713
A new ecdysteroid (rhapisterone B) has been isolated from the seeds ofRhaponticum cathamoides (Willd.) Iljin. (familyCompositae). It has been shown that it is 2β, 3β, 11α, 14α, 20R, 24ξ-hexahydroxy-5β-cholest-7-en-6-one.
Institute of the Chemistry of Plant Substances, Uzbek Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii,
No. 6, pp. 806–808, November–December, 1991. 相似文献
3.
V. N. Odinokov G. Yu. Ishmuratov M. P. Yakovleva G. A. Tolstikov 《Chemistry of Natural Compounds》1992,28(5):499-500
2-6-Dimethyloctan-1-ol, the formate of which is a mimic of the aggregation pheromone of the flour beetlesTribolium confusum andT. castaneum, has been synthesized by the hydroboration of 2,6-diemthyloct-1-ene, obtained from β-methylvaleric acid.
Institute of Organic Chemistry, Urals Branch, Russian Academy of Sciences, Ufa. Translated from Khimiya Prirodnykh Soedinenii,
No. 5, pp. 571–573, September–October, 1992. 相似文献
4.
A mixture of two alkaloids, d, ℓ-α- and β-scopodonnines, known earlier as synthetic products, has been isolated for the first
time from the seed ofDatura inoxia. The spatial structure of β-scopodonnine dimethiodide has been established by the x-ray structural method.
Institute of Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh
Soedinenii, No. 4, pp. 532–537, July–August, 1991. 相似文献
5.
Yu. S. Vollerner S. D. Kravets A. S. Shashkov M. B. Gorovits N. K. Abubakirov 《Chemistry of Natural Compounds》1989,25(4):431-435
A new steroid glycoside of the spirostan series, anzuroside, has been isolated from the collective fruits of the cocultivatedAllium suvorovii Rgl. andA. stipitatum Rgl. (family Liliaceae, local name “anzur”). Enzymatic cleavage of the glycoside has given the previously undescribed steroid
sapogenin anzurogenic C, which has the structure of (24S, 25S)-2α,3β,5,24-tetrahydroxy-5β-spirostan-6-one. Anzuroside is the
24-O-β-D-glucopyranoside of anzurogenin C.
Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh
Soedinenii, No. 4, pp. 505–510, July–August, 1989. 相似文献
6.
24-Ethylcholesta-7, 22E-diene-3β,5α,6β-triol — a natural trihydroxysteroid from the bryozoanMyriapora truncata — has been synthesized from stigmasterol.
Institute of Bioorganic Chemistry, Academy of Sciences of the Belorussian SSR, Minsk. Translated from Khimiya Prirodnykh Soedinenii,
No. 5, pp. 664–669, September–October, 1989. 相似文献
7.
Two lignans have been isolated from the bark ofSyringa vulgaris and identified: (+)-lariciresinol 4-β-D-glucopyranoside (I) and -olivil 4-β-D-glucopyranoside (II). This is the first time
that glycoside (9) has been described.
All-Union Scientific-Research Institute of Medicinal Plants Scientific-Production Association, Moscow. Translated from Khimiya
Prirodnykh Soedinenii, No. 6, pp. 768–771, November–December, 1991. 相似文献
8.
M. R. Nuriddinova V. M. Malikov A. Yu. Kushmuradov A. I. Saidkhodzhaev 《Chemistry of Natural Compounds》1992,28(6):551-552
A microcolumn HPLC fingerprint method has been developed for the epigeal organs ofFerula kuhistanica andF. tenuisecta. The possibility has been shown of control by the microcolumn HPLC method of the qualitative and quantitative yields of ferutinin
in the initial plant raw material and in preparations extracted from it, and also at each stage of the isolation of the desired
product. The method is universal and does not depend on species and chemical composition of the plant.
Institute of the Chemistry of Plant Substances, Uzbekistan Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh
Soedinenii, No. 6, pp. 635–636, November–December, 1992. 相似文献
9.
A. É. Timbekova M. F. Larin M. R. Yagudaev N. K. Abubakirov 《Chemistry of Natural Compounds》1989,25(5):573-576
A new triterpene glycoside — medicoside H — has been isolated from the roots ofMedicago sativa L. (Fabaceae), and on the basis of chemical transformations and spectral characteristics its structure has been established
as medicagenic acid 3-O-β-D-glucopyranoside 28-O-[O-α-L-rhamnopyronosyl-(1 → 2)-β-L-arabino-pyranoside].
Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh
Soedinenii, No. 5, pp. 673–677, September–October, 1989. 相似文献
10.
Mass-spectrometric method of analyzing mixtures of diterpene bases from plants of the genus Aconitum
The qualitative composition of the mixture of diterpene alkaloids from the roots ofAconitum septentrionale from various growth sites has been studied. Twenty-one bases have been detected. The mass-spectrometric method of multipeak
monitoring has been used for the rapid checking of the amounts of the main component and seven subsidiary components.
Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh
Soedinenii, No. 4, pp. 532–536, July–August, 1989. 相似文献
11.
I. M. Yusipova B. Tashkhodzhaev I. A. Bessonova M. S. Yunusov M. R. Yagudaev V. G. Kondrat'ev A. I. Shreter 《Chemistry of Natural Compounds》1990,26(3):314-318
It has been established by the x-ray structural method that a new alkaloid isolated from the epigeal part ofAconitum coreanum has the structure of 13-acetyl-14-hydroxy-2-isobutyrylhetisine N-oxide. This is the first time that a N-oxide has been isolated
among the hetisine alkaloids.
Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh
Soedinenii, No. 3, pp. 378–383, May–June, 1990. 相似文献
12.
S. I. Sviridov 《Chemistry of Natural Compounds》1991,27(4):410-413
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. 相似文献
13.
A new component C15H22O3, has been isolated from the epigeal part ofArtemisia fragrans. On the basis of chemical transformations and spectral characteristics it has been established that it has the structure
of 1α-hydroxy-5,7αH,6,11βH-eudesm-3,4-en-6,12-olide (I).
V. L. Komarov Institute of Botany, Academy of Sciences of the Azerbaidzhan SSR, Baku. Translated from Khimiya Prirodnykh Soedinenii,
No. 5, pp. 632–635, September–October, 1990. 相似文献
14.
V. N. Paukov I. S. Vasil'eva N. N. Karasev V. A. Paseshnichenko 《Chemistry of Natural Compounds》1988,24(4):465-467
A method has been developed for the quantitative determination of oligospirostanosides in a culture ofDioscorea deltoidea cells with the aid of HPLC on a LiChrosorb RP-18 column. Elution was performed with acetonitrile-water (50–75%) with detection
at 207 nm.
A. N. Bakh Institute of Biochemistry, Moscow. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 549–551, July–August,
1988. 相似文献
15.
A new withasteroid — physangulide — has been isolated from the leaves ofPhysalis angulata L. It has been shown that physangulide is the first natural 22S-withanolide. Its structure has been determined as 3β,4β,20,24,25-pentahydroxy-1-oxo-5β,6β-epoxy-20R,22S,24S,25R-withanolide.
Its1H and13C NMR spectra, confirming this interpretation, are given.
Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh
Soedinenii, No. 3, pp. 366–371, May–June, 1990. 相似文献
16.
B. A. Imomnazarov M. I. Isaev S. S. Saboiev N. K. Abubakirov 《Chemistry of Natural Compounds》1990,26(5):555-558
A new triterpene glycoside of the cycloartane series, which has been called cyclocarposide, has been isolated from the epigeal
part of the plantAstragalus coluteocarpus Boiss. (Leguminosae). The structure of cyclocarposide has been established on the basis of chemical transformations and spectral
characteristics as 20R,24S-epoxycycloartane-3β,6α,16β,25-tetraol 6-0-α-L-rhamnopyranoside 3-0-α-D-xylopyranoside.
Institute of Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Pamir Biological Institute, Academy
of Sciences of the Tadzhik SSR, Khorog. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 653–656, September–October,
1990. 相似文献
17.
S. I. Sviridov B. S. Ermolinskii G. A. Belyakova V. G. Dzhavakhiya 《Chemistry of Natural Compounds》1991,27(5):566-571
Ulocladols A and B — new exometabolites having a mixed sesquiterpenoid-polyketide nature that are structurally close to the
host-specific toxins ofAlternaria citri — have been isolated from the deuteromyceteUlocladium chartarum. Both substances inhibit the growth of cotton seeds.
All-Union Scientific Research Institute of Phytopathology, Moscow Province, Golitsyno. M. V. Lomonosov Moscow State University.
Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 642–648, September–October, 1991. 相似文献
18.
Euchrenone a2 (7) isolated from the roots ofEuchresta japonica has been synthesised from 3-prenylphloroacetophenone (1) by other workers. We carried out its cyclodehydrogenation with dichloro dicyano quinone (DDQ) to obtain 6-acetyl-5,7-dihydroxy-2,2-dimethylchromene
(2) which was ethoxymethylated in the 7-position to give 6-acetyl-7-ethoxymethoxy-5-hydroxychromene (3). Chalcone condensation of3 and 4-ethoxymethoxy-3-C-prenylbenzaldehyde (4) gave 4,6′-bisethoxymethoxy-2′-hydroxy-6″, 6″-dimethyl-3-C-prenylpyrano (2″, 3″–4,3) chalcone (5) which cyclised with methanolic sodium acetate to give protected 5,4′-bisethoxymethoxy-6″, 6″-dimethyl-3′-C-prenylpyrano (2″, 3″–7,8) flavanone (6). Deprotection of6 with 4% methanolic HCl yielded (7) with melting point and spectral data identical to that of the natural compound. 相似文献
19.
Sesquiterpene compounds of the furanoeremophilane series have been isolated from extracts of the roots ofCacalia sp. growing in the Soviet Far East. The presence of antioxidant and antiradical activities in two representatives of the
series has been established.
Pacific Ocean Institute of Bioorganic Chemistry, Far Eastern Branch, Academy of Sciences of the USSR, Vladivostok. Translated
from Khimiya Prirodnykh Soedinenii, No. 5, pp. 643–646, September–October, 1989. 相似文献
20.
S. M. Adekenov K. A. Aituganov K. M. Turdybekov S. V. Lindeman Yu. T. Struchkov 《Chemistry of Natural Compounds》1991,27(5):575-579
The new germacranolide argolide has been isolated from the epigeal part ofArtemisia glabella, and its structure has been shown by its conversion into oxopelenolide B. From the results of an x-ray investigation it is
suggested that argolide has the spatial structure of 3-oxo-4α,7α,6β(H)-germacra-1(10),11(13)-dien-6,12-olide.
Institute of Organic Synthesis and Coal Chemistry, Kazakh Academy of Sciences, Karaganda. A. N. Nesmeyanov Institute of Organometallic
Chemistry, Russian Academy of Sciences, Moscow. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 653–657, September–October,
1991. 相似文献