Zobrazeno 1 - 10
of 113
pro vyhledávání: '"N. V. Kovganko"'
Publikováno v:
Chemistry of Natural Compounds. 47:592-596
(Z)- and (E)-3-(2-chloropyridin-5-ylmethyl)oximino-(22E,24R)-ergosta-4,7,22-trienes (5–6) were synthesized by chemical transformation of ergosterol. Several oxidative transformations of them were studied. It was found that oxidation of these compou
Publikováno v:
Chemistry of Natural Compounds. 46:750-755
New derivatives of steroidal 6-ketoximes containing α-chloropyridine neonicotinoid groups characteristic of bioactive compounds were synthesized by formation of oximes of cholestane and stigmastane 3β,5-dihydroxy-6-ketosteroids with O-(2-chloropyri
Autor:
N. Sh. Ramazanov, Yu. G. Chernov, I. D. Bobaev, S. N. Sokolov, N. V. Kovganko, Z. R. Utaeva, Zh. N. Kashkan
Publikováno v:
Chemistry of Natural Compounds. 45:385-388
New esters 2-5 that contain 6-chloropyridine groups characteristic of the alkaloid epibatidine were prepared by acylation of 20-hydroxyecdysone (1) by 6-chloronicotinoylchloride.
Publikováno v:
Chemistry of Natural Compounds. 45:200-204
New esters of 3β,5α,6β-trihydroxysteroids and 3β,5-dihydroxy-6-ketosteroids containing 6-chloropyridine groups characteristic of the alkaloid epibatidine were synthesized by acylation with 6-chloronicotinoylchloride.
Publikováno v:
Chemistry of Natural Compounds. 45:205-208
New steroid derivatives containing 6-chloropyridine groups characteristic of the alkaloid epibatidine and neonicotinoid insecticides were synthesized by reacting 3β,5α,6β-trihydroxysteroids or 3β,5-dihydroxy-6ketosteroids with 2-chloro-5-chlorome
Autor:
N. V. Kovganko, O. V. Sviridov, T. S. Serchenya, Yu. G. Chernov, E. P. Kiseleva, K. I. Mikhailopulo, T. M. Tsvetkova
Publikováno v:
Journal of Applied Spectroscopy. 75:857-863
We have used fluorescence spectroscopy methods to show that imidacloprid and its structural analogs form complexes with human serum albumin (HSA). The nature of the spectral changes in the ligand×protein systems and the calculated complexation param
Publikováno v:
Russian Journal of Organic Chemistry. 44:1305-1310
Previously unknown esters were synthesized by reaction of m-carborane-C-carbonyl chloride with natural terpene alcohols, sterols, plant phenols, and oximes in the presence of pyridine.
Autor:
E. A. Dikusar, N. V. Kovganko, Vladimir I. Potkin, A. P. Yuvchenko, T. D. Zvereva, M. P. Bei, N. G. Kozlov
Publikováno v:
Chemistry of Natural Compounds. 42:539-542
Previously unreported esters 1b–20b were synthesized from natural terpene alcohols, sterols, plant phenols, and camphar oxime (1a–20a) by reaction with o-carborane-C-carboxylic acid chloride.
Publikováno v:
Chemistry of Natural Compounds. 42:254-258
Previously undescribed 2-bromo-3,4,4-trichlorobut-3-enoates 1b-23b were synthesized in 84–91% yield from natural alcohols including terpenes and steroids, plant phenols, and oximes of natural carbonyl compounds 1a-23a by reaction of 2-bromo-3,4,4-t
Autor:
T. D. Zvereva, Vladimir I. Potkin, N. G. Kozlov, E. A. Dikusar, N. V. Kovganko, A. P. Yuvchenko
Publikováno v:
Russian Journal of General Chemistry. 75:575-579
m-Carborane-1,7-dicarbonyl dichloride was reacted with functionally substituted alcohols and phenols to obtain previously unknown esters, peroxy-containing inclusive.