Zobrazeno 1 - 10
of 11
pro vyhledávání: '"U. S. Makhmudov"'
Autor:
Kh. M. Bobakulov, D. S. Ismailova, Sh. S. Azimova, Abdukhakim Ziyaev, S. A. Sasmakov, U. S. Makhmudov, E. G. Yusupova
Publikováno v:
Journal of the Iranian Chemical Society. 16:545-551
By the reaction of 5-(4-aminophenyl)-1,3,4-oxadiazolin-2-thione with alkyl halides 2-alkylthio-5-(4-aminophenyl)-1,3,4-oxadiazoles, 2–4 were obtained. By the reaction of compounds 2–4 with aromatic aldehydes, new Schiff bases 5a–d and 6a–d we
Publikováno v:
Chemistry of Natural Compounds. 54:735-738
3-Formyl- and 3-bromo-N-methylcytisine derivatives of the alkaloid N-methylcytisine from Thermopsis alterniflora were synthesized. Their structures were established using NMR spectroscopy and X-ray crystal structure analyses. The crystal structure of
Autor:
B. Sylla, N. N. Barbakadze, André Pichette, N. Sh. Nadaraia, M. L. Kakhabrishvili, U. S. Makhmudov
Publikováno v:
Chemistry of Natural Compounds
Several new N-containing epiandrosterone derivatives modified by phenylacetic acid chloride were synthesized for biological activity studies. Compounds with antiviral activity were discovered among them and 3β-hydroxy-1'-aryl-3'-methyl-5'-androstano
Autor:
Bakhodir Tashkhodjaev, Samat Talipov, N. S. Mukhamedov, U. S. Makhmudov, B. Zh. Elmuradov, M. I. Olimova
Publikováno v:
Journal of Structural Chemistry. 58:627-630
While growing 2-ethylbenzimidazole crystals from methanol, polymorph 1с is obtained. In polymorphs 1а-с, 2-ethylbenzimidazole molecules have a different arrangement in the packing and the position of the ethyl group relative to the benzimidazole p
Autor:
Kh. M. Shakhidoyatov, Bakhodir Tashkhodjaev, U. S. Makhmudov, L. Yu. Izotova, T. F. Ibragimov
Publikováno v:
Journal of Inclusion Phenomena and Macrocyclic Chemistry. 72:375-381
1,2,4-Thiadiazol derivatives of cytisine alkaloid—N-(3-methylthio-1,2,4-thiadiazol-5-yl-aminocarbonylmethyl) (1), N-(3-ethylthio-1,2,4-thiadiazol-5-yl-aminocarbonylmethyl) (2), N-(3-hexylthio-1,2,4-thiadiazol-5-yl-aminocarbonylmethyl) (3) cytisine
Autor:
G. Genzhemuratova, M. G. Levkovich, N. P. Abdullaev, U. S. Makhmudov, Kh. M. Shakhidoyatov, B. Tashkhodzhaev
Publikováno v:
Chemistry of Natural Compounds. 45:837-843
N-Acyl cytisine derivatives were synthesized by acylation with acetic anhydride; benzoyl and o-bromo- and p-nitrobenzoyl chlorides; and crotonyl and cinnamoyl chlorides. The structures of the synthesized compounds were studied using IR, PMR, and x-ra
Autor:
V. A. Saprykina, Kh. M. Shakhidoyatov, Bakhodir Tashkhodjaev, A. A. Ibragimov, K. K. Turgunov, U. S. Makhmudov
Publikováno v:
Journal of Inclusion Phenomena and Macrocyclic Chemistry. 66:315-318
By the single-crystal X-ray diffraction the structures of a new polymorphic form and crystal solvates of N-(3-methylthio-1,2,4-thiadiazol-5-yl-aminocarbonylmethyl)cytisine (C16H19N5O2S2) with dioxane and pyridine have been determined. The crystal str
Publikováno v:
Chemistry of Natural Compounds. 44:466-471
The crystal structures of N-(3-ethylthio-1,2,4-thiadiazol-5-yl-aminocarbonylmethyl)cytisine with waters of hydration, water and methanol, and acetone were studied by x-ray diffraction. Three conformers formed by rotation of the 3-ethylthio-1,2,4-thia
Autor:
Valentina I. Vinogradova, B. Tashkhodzhaev, M. G. Levkovich, Sh. B. Rakhimov, U. S. Makhmudov
Publikováno v:
Chemistry of Natural Compounds. 44:208-212
The molecular structures of N-(o-and p-hydroxybenzyl)cytisine were investigated by NMR spectroscopy, x-ray structure analysis, and molecular modeling. It was found that NMR resonances of the OH and aromatic protons in N-(o-hydroxybenzyl)cytisine were
Autor:
K. K. Turgunov, B. Tashkhodjave, Kh. M. Shakhidoyatov, A. G. Tojiboev, T. F. Ibragimov, U. S. Makhmudov, V. A. Saprykina
Publikováno v:
Journal of Inclusion Phenomena and Macrocyclic Chemistry. 61:71-76
A polymorphs, crystallohydrate and crystallosolvates of N-(3-methylthio-1,2,4-thiadiazol-5-yl-aminocarbonylmethyl)cytisine, C16H19N5O2S2, with chloroform, methanol, benzene have been obtained and crystal structures have been determined by the method