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  1. No Access

    Article

    Photochemical isomers of tropolone alkaloids

    This review, which covers the literature up to 1989, generalizes advances in the field of the study of the photochemical isomers of colchicine and tropolone alkaloids related to it. Information is given on the...

    B. Ch. Chommadov, M. K. Yusupov, A. S. Sadykov in Chemistry of Natural Compounds (1990)

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    Article

    Study of complex mixtures of natural substances by the defocusing and dadi methods. VI. Components of the secretion of the pre-anal gland of some poisonous snakes

    By mass-spectrometric methods, cholesterol and docosanoic, heneicosanoic, cicosanoic, octadecanoic, cis-octadec-9-enoic, heptadecanoic, hexadecanoic, and pentadecanoic acids have been identified in the odorife...

    R. R. Razakov, A. S. Sadykov in Chemistry of Natural Compounds (1986)

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    Article

    X-ray structural investigation of gossypol and its derivatives. VI. The structure of the adduct of gossypol with carbon tetrachloride

    B. T. Ibragimov, S. A. Talipov, G. V. Nazarov… in Chemistry of Natural Compounds (1986)

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    Article

    An x-ray structural investigation of gossypol and its derivatives. V. Crystal structure of the ligroin modification of gossypol

    S. A. Talipov, B. T. Ibragimov, B. N. Dadaboev… in Chemistry of Natural Compounds (1986)

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    Article

    X-ray structural investigation of gossypol and its derivatives. VI. Structure of an adduct of gossypol with diethyl ether

    B. T. Ibragimov, S. A. Talipov, T. F. Aripov, B. Dadaboev… in Chemistry of Natural Compounds (1985)

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    Article

    X-ray structural investigation of gossypol and its derivatives. III. Structure of the crystalline modification of gossypol grown from solution in methylene chloride

    S. A. Talipov, B. T. Ibragimov, G. B. Nazarov… in Chemistry of Natural Compounds (1985)

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    Article

    A study of complex mixtures of natural substances by the defocusing and dadi methods. V. Steroid metabolites of the phytopathogenic fungusVerticillium dahliae

    The mixture of steroid metabolites of the phytopathogenic fungusV. dahliae have been studied by high- and low-resolution mass spectrometry, metastable defocusing, and the direct analysis of daughter ions (DADI). ...

    R. R. Razakov, A. K. Kasimov, Kh. A. Aslanov… in Chemistry of Natural Compounds (1985)

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    Article

    Mass-spectrometric study of the new alkaloids from plants of the family Liliaceae

    A review is given of the mass spectra of alkaloids isolated from plants of the generaColchicum L.,Merendera ramond, family Liliaceae that are derivatives of homoproaporphine, homoaporphine, homomorphine, and allo...

    É. Kh. Timbekov, A. S. Sadykov in Chemistry of Natural Compounds (1985)

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    Article

    A study of complex mixtures of natural substances by the defocusing and DADI methods. III. Components of the protective secretion of the beetleCoccinella septempunctata

    The composition of the protective secretion of the seven-spot ladybugCoccinella septempunctata L. (Coleoptera, Coccinellidae) has been studied by the methods of high- and low-resolution mass spectrometry. By dete...

    R. R. Razakov, A. K. Kasimov, Kh. A. Aslanov… in Chemistry of Natural Compounds (1981)

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    Article

    The study of complex mixtures of natural substances by the defocusing and DADI methods. II. Phytosterols accompanying β-sitosterol

    Low- and high-resolution mass spectra and defocusing and DADI spectra of samples of β-sitosterol isolated from various plant material have been studied. The spectral information obtained has shown the presence...

    R. Razakov, A. K. Kasimov, Kh. A. Aslanov, A. S. Sadykov in Chemistry of Natural Compounds (1981)

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    Article

    X-ray structural investigation of allomatrine and its N-oxide

    B. T. Ibragimov, G. N. Tishchenko, Yu. K. Kushmuradov… in Chemistry of Natural Compounds (1979)

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    Article

    Molecular and crystal structure of sophoridine

    The three-dimensional structure of the alkaloid sophoridine C15H24ON2 has been studied by x-ray structural analysis; the parameters of the elementary cell are: a=5.458, b=10.640, c=11.989 Å; γ=99.7°; z=2; space g...

    B. T. Ibragimov, G. N. Tishchenko, Yu. K. Kushmuradov… in Chemistry of Natural Compounds (1979)

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    Article

    Tropolone alkaloids

    M. K. Yusupov, A. S. Sadykov in Chemistry of Natural Compounds (1978)

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    Article

    The biosynthesis of the alkaloids of Goebelia pachycarpa

    1. Qualitative and quantitative compositions of the main alkaloids in five development phases of theGoebelia pachycarpa C. A. Mey. have been determined.

    B. A. Abdusalamov, Kh. A. Aslanov, A. S. Sadykov in Chemistry of Natural Compounds (1977)

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    Article

    Alkaloids of Sophora alopecuroides

    On the basis of spectral characteristics and chemical transformations, a new alkaloid with the composition C15H22O2N2 isolated fromSophora alopecuroides has been assigned the most probable structure of 13,14-dehy...

    S. Kuchkarov, Yu. K. Kushmuradov, Kh. A. Aslanov… in Chemistry of Natural Compounds (1977)

  16. No Access

    Article

    Quantitative determination of the alkaloids ofAnabasis aphylla by thin-layer chromatography

    A chromatographic method has been developed for the quantitative determination of the alkaloids ofAnabasis aphylla — anabasine, aphylline, lupinine, aphyllidine, and anabasamine — and also pachycarpine in the mix...

    Sh. Yusupov, A. I. Ishbaev, Kh. A. Aslanov, A. S. Sadykov in Chemistry of Natural Compounds (1976)

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    Article

    The structure of anhydrolupinine

    It has been shown that the anhydrolupinine obtained from lupinine by the action of water-abstracting agents is a mixture of two isomers differing by the position of a double bond in the ring system of the mole...

    A. I. Begisheva, K. Inoyatova, A. A. Abduvakhabov… in Chemistry of Natural Compounds (1976)

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    Article

    The structure of kesselringine

    On the basis of IR, PMR, and mass spectra and chemical transformations, the alkaloid kesselringine isolated from the epigeal parts ofColchicum kesselringii Rgl. has been shown to have the structure of 2,11-dihydr...

    M. K. Yusupov, A. S. Sadykov in Chemistry of Natural Compounds (1976)

  19. No Access

    Article

    The structure of luteidine

    On the basis of UV,13C NMR, and mass spectra, it has been established that luteidine belongs to the group of homoproaporphine alkaloids.

    N. L. Mukhamed'yarova, M. K. Yusupov, M. G. Levkovich… in Chemistry of Natural Compounds (1976)

  20. No Access

    Article

    Structure of gossyvertin — A new phytoalexin of the cotton plant

    A new phenolic compound — gossyvertin — has been isolated from the stems of a cotton plant infected with fungusVerticillium dahliae Kleb.; the structure 8-formyl-1,7-dihydroxy-5-isopropyl-2-methoxy-3-methylnaphth...

    A. K. Karimdzhanov, A. I. Ismailov, Z. S. Abdullaev… in Chemistry of Natural Compounds (1976)

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