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  1. No Access

    Article

    Synthesis of structural fragments of natural 3-phenoxycoumarins

    The synthesis of substituted and unsubstituted 3-phenoxycoumarins is described.

    G. O. Ismailova, S. M. Mavlyanov, F. G. Kamaev in Russian Journal of Bioorganic Chemistry (2012)

  2. No Access

    Article

    1H NMR study on the solvent effect on imine-enamine tautomerism of the condensation product of gossypol with 4-aminoantipyrine

    According to the 1H NMR data, the condensation product of gossypol with 4-aminoantipyrine in chloroform-d exists in the imine form, while in DMSO-d 6, as the enamine tautomer. The condensation pro...

    K. Z. Tilyabaev, F. G. Kamaev, A. M. Yuldashev… in Russian Journal of Organic Chemistry (2012)

  3. No Access

    Article

    Synthesis of structural fragments of natural flavonoids and flavolignans from 2-hydroxychalcones

    New 2′-O-acetylchalcones and 2-hetaryl-3-aminochromones modified with 6-halogen-1,3-benzodioxane, 1,4-benzodioxane, and 1,5-benzodioxepan groups were synthesized as structural analogues of natural flavonoids. The...

    G. O. Ismailova, S. M. Mavlyanov, F. G. Kamaev in Russian Journal of Bioorganic Chemistry (2012)

  4. No Access

    Article

    Phenolic compounds from Euphorbia canescens and E. franchetii

    R. N. Rakhimov, N. G. Abdulladzhanova, F. G. Kamaev in Chemistry of Natural Compounds (2011)

  5. No Access

    Article

    Phenolic compounds from Plantago major and P. lanceolata

    R. R. Makhmudov, N. G. Abdulladzhanova, F. G. Kamaev in Chemistry of Natural Compounds (2011)

  6. No Access

    Article

    Synthesis, structures, and acute toxicity of gossypol nonsymmetrical aldehyde derivatives

    Nonsymmetrical aldehyde derivatives of gossypol, a yellow polyphenolic pigment of cottonseed, were synthesized by reactions with ammonia, aniline, 4-aminoantipyrine, and barbituric acid. Their structures were ...

    K. Z. Tilyabaev, F. G. Kamaev, N. L. Vypova… in Russian Journal of Bioorganic Chemistry (2010)

  7. No Access

    Article

    Membrane-active properties and antiradical activity of gossypol and its derivatives

    A novel asymmetric gossypol derivative was synthesized. The antioxidant activity of gossypol and certain of its derivatives at the aldehyde groups and the interaction of these compounds with model membranes we...

    I. I. Tukfatullina, K. Z. Tilyabaev, A. Mamadrakhimov… in Chemistry of Natural Compounds (2008)

  8. No Access

    Article

    Chemical composition and biological activity of total bufadienolides from the Central-Asian Bufo viridis toad venom

    The chemical composition of bufadienolides isolated from the venom of Bufo viridis green toad occurring in Central Asia was determined and their biological properties were studied. Six individual bufadienolides w...

    A. B. Soliev, Sh. Ya. Mirzaakhmedov… in Pharmaceutical Chemistry Journal (2007)

  9. No Access

    Article

    Synthesis of (bis-Dimethylaminoethylimino)gossypol and Its Associate with Polyvinylpyrrolidone and Their Effect on Protein Biosynthesis in Rat Liver with Acute Hepatitis

    (Bis-dimethylaminoethylimino)gossypol and its associate with PVPwere synthesized. Their effects on in vitro and in vivo synthesis of cytoplasmic proteins in rats with acute heliotrinic hepatitis were studied. ...

    S. N. Dalimova, M. D. Mukhamedova, D. N. Dalimov… in Chemistry of Natural Compounds (2003)

  10. No Access

    Article

    Azo-Derivatives of Gossypol and Its Imines

    Azo-coupling of diazotized aromatic amines with gossypol and gossypolimines was studied. The physicochemical properties and interferon-inducing activity of the products were determined. It was found that the i...

    K. Zh. Rezhepov, Kh. L. Ziyaev, N. I. Baram, F. G. Kamaev… in Chemistry of Natural Compounds (2003)

  11. No Access

    Article

    Polyphenols from Vitis vinifera Seeds

    The chemical composition of polyphenols from grape seeds was studied. It has been found that they contain four catechins and two proanthocyanidins. The probable structure of the proanthocyanidins was proposed ...

    A. Zh. Pirniyazov, N. G. Abdulladzhanova, S. M. Mavlyanov… in Chemistry of Natural Compounds (2003)

  12. No Access

    Article

    Synthesis and Interferon-Inducing Activity of Azo-Derivatives of Gossypol and Its Imines

    New azo-derivatives of gossypol and its imines were described. Their physicochemical properties and data on their interferon-inducing activity were presented.

    K. Zh. Rezhepov, Kh. L. Ziyaev, N. I. Baram… in Chemistry of Natural Compounds (2002)

  13. No Access

    Article

    Synthesis, Structure, and Membrane Activity of New Glycyrrhetic Acid Derivatives

    Derivatives of 3-O-acetyl-18-βH-glycyrrhetic acid were synthesized. Their structures and membrane activities were studied.

    B. A. Salakhutdinov, D. N. Dalimov, T. F. Aripov… in Chemistry of Natural Compounds (2002)

  14. No Access

    Article

    Synthesis of Amides of 3-O-Acetyl-18-βH-glycyrrhetic Acid

    Methods of preparing amides of 3-O-acetyl-18-βH-glycyrrhetic acid from certain amines are described. The structures of the prepared amides have been confirmed by chemical and spectral analyses ...

    D. N. Dalimov, A. Zh. Dzhuraev, F. G. Kamaev in Chemistry of Natural Compounds (2001)

  15. No Access

    Article

    Transformation of batridene

    Transformations of 1,1′,6,6′,7,7′-hexahydroxy-3,3′-dimethyl-5,5′-diisopropyl-2,2′-dinaphthylidene-8,8′-dibarbituric acid (batridene) in DMSO are studied.

    N. I. Baram, F. G. Kamaev, Kh. L. Ziyaev, A. I. Ismailov… in Chemistry of Natural Compounds (2000)

  16. No Access

    Article

    Structure of 18-de(hydroxymethyl)-3-O-3′; 3-O-18′-dilagohirsin — A product of the dehydration of lagochilin

    The structure of a dimeric dehydration product of the diterpenoid lagochilin — 18-de(hydroxymethyl)-3-O-3′;3-O-18′-dilagohirsin — has been investigated by PMR spectroscopy and x-ray structural analysis. It has...

    U. N. Zainutdinov, S. A. Talipov, F. G. Kamaev… in Chemistry of Natural Compounds (1999)

  17. No Access

    Article

    Gossypol and its derivatives and their complexes in solutions

    The results are given of a study of gossypol, its physiologically active derivatives, and their complexes with N-polyvinylpyrrolidone (M.m. 8000) in various media. It has been shown that the production of comp...

    Kh. L. Ziyaev, N. I. Baram, B. Khodzhaniyazov… in Chemistry of Natural Compounds (1998)

  18. No Access

    Article

    New gossypol imines

    Information is given on new gossypol imines. The use of hydrazines as the imine components produces Schiff bases of gossypol existing in the benzoid form.

    Kh. L. Ziyaev, F. G. Kamaev, N. I. Baram, L. Biktimirov… in Chemistry of Natural Compounds (1997)

  19. No Access

    Article

    Tannins ofGeranium sanguineum

    A study has been made of the phenolic compounds ofGeranium sanguineum. One tannin of the hydrolyzable series has been isolated from the epigeal part, and for this the structure of 1,3-bis-O-digalloyl-2-O-galloyl-...

    S. M. Mavlyanov, Sh. Yu. Islambekov, F. G. Kamaev… in Chemistry of Natural Compounds (1997)

  20. No Access

    Article

    Synthesis and antienzyme activity of 2-OXO-2SR-4-methyl-1,3,2-dioxaphosphorinanes containing salsoline, salsolidine, cytisine, and decahydroquinoline residues

    New derivatives of 2-oxo-4-methyl-1,3,2-dioxaphosphorinane containing residues of salsoline, salsolidine, cytisine, and decahydroquinoline have been synthesized, and their antienzyme activities have been inves...

    D. N. Dalimov, L. K. Abdullaeva, B. N. Babaev… in Chemistry of Natural Compounds (1996)

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