Zobrazeno 1 - 8
of 8
pro vyhledávání: '"I. D. Bobaev"'
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 8, Pp 804-808 (2021)
The compounds (17S,20R,22R,24R,25S)-5β,6β:20,24-diepoxy-4β,25-dihydroxy-1-oxowith-2-en-26,22-olide and (20R,22R)-5α,14α,20-Trihydroxy-1-oxo-6α,7α-epoxywitha-2-enolide were isolated from a chloroform extract of the aerial parts of Physalis angu
Externí odkaz:
https://doaj.org/article/32f05953a1fa4ba7b1a05e064c9fc910
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 8, Pp 804-808 (2021)
Acta Crystallographica Section E: Crystallographic Communications
Acta Crystallographica Section E: Crystallographic Communications
The chemical structures of two withanolides, isolated from the leaves of Physalis angulata by column chromatography, were studied. The isolated compounds are (17S,20R,22R,24R,25S)-5β,6β:20,24-diepoxy-4β,25-dihydroxy-1-oxowith-2-en-26,22-olide
Autor:
N. D. Abdullaev, Kh. M. Bobakulov, I. V. Zavarzin, A. N. Blinnikov, I. D. Bobaev, N. Sh. Ramazanov
Publikováno v:
Chemistry of Natural Compounds. 53:1088-1092
Acylation of 20-hydroxy-2,3-O-isopropylideneecdysone (2) by carboxylic-acid anhydrides produced ecdysteroid derivatives containing various organic acids (5–12).
Publikováno v:
Chemistry of Natural Compounds. 51:706-710
Acylation by o-chlorobenzoylchloride produced new 20-hydroxyecdysone ( 1 ) derivatives with o-chlorobenzoyl fragments ( 2–5 ) in the 20-hydroxyecdysone.
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. 45:135-136
Publikováno v:
Chemistry of Natural Compounds. 43:117-118