Zobrazeno 1 - 7
of 7
pro vyhledávání: '"V. I. Yamovoi"'
Publikováno v:
Chemistry of Natural Compounds. 40:129-133
A new sesquiterpene lactone 5β(H)-austricin was isolated from white wormwood (Artemisia leucodes Schrenk.). Its structure was established by chemical and spectral methods.
Autor:
S. M. Adekenov, Yu. V. Gatilov, E. A. Kul'magambetova, A. T. Kulyyasov, K. M. Turdybekov, V. I. Yamovoi, R. N. Pak, D. D. Kusainova
Publikováno v:
Chemistry of Natural Compounds. 38:527-531
Reaction of pinostrobin with hydroxylamine and hydrazine formed the corresponding oxime and hydrazone with retention of the γ-pyrone ring. The structures of the modified pinostrobin derivatives were established using PMR, 13C NMR, mass spectrometry,
Autor:
A. V. Kazantsev, S. M. Adekenov, V. I. Yamovoi, K. M. Turdybekov, M. M. Aksartov, E. A. Otrashchenkov
Publikováno v:
Russian Journal of Organic Chemistry. 38:1635-1640
Reactions of lithium and magnesium derivatives of substituted o- and m-carboranes with 3-ethoxycarbonylcoumarin and coumarin were investigated. The main directions and the laws of the processes were revealed.
Publikováno v:
Chemistry of Natural Compounds. 37:424-427
5-Hydroxy-7-methoxyflavanone (pinostrobin) was isolated from buds of balsamic poplar (Populus balsamifieraL.). An x-ray structure analysis of its novel polymorphic modification is performed.
Autor:
S. M. Adekenov, B. I. Tuleuov, U. A. Baltaev, Yu. V. Gatilov, V. I. Yamovoi, K. M. Turdybekov, Pavel Tarlykov, A. G. Berdin, A. B. Ospanova, G. Khabdolda
Publikováno v:
Russian Journal of Applied Chemistry. 79:1371-1373
Tigogenin [(25R)-5α-spirostan-3β-o1] was isolated from Digitalis lanata Ehrh., and its crystal and molecular structure was determined by single crystal X-ray diffraction.
Autor:
K. M. Turdybekov, E. K. Donbaeva, Yu. V. Gatilov, B. I. Tuleuvov, V. I. Yamovoi, S. M. Adekenov
Publikováno v:
Russian Journal of General Chemistry. 75:943-945
5-Hydroxy-6,7,4′-trimethoxyflavone was isolated from Centaurea pseudomaculosa Dobrocz., and its bromo derivative was obtained. The reaction of 8-bromo-5-hydroxy-6,7,4′-trimethoxyflavone with acetic anhydride in the presence of a catalytic amount
Autor:
E. A. Otrashchenkov, S. M. Adekenov, M. M. Aksartov, V. I. Yamovoi, A. V. Kazantsev, K. M. Turdybekov
Publikováno v:
ChemInform. 34
Reactions of lithium and magnesium derivatives of substituted o- and m-carboranes with 3-ethoxycarbonylcoumarin and coumarin were investigated. The main directions and the laws of the processes were revealed.