Zobrazeno 1 - 10
of 42
pro vyhledávání: '"N. V. Tolkacheva"'
Autor:
M. V. Titova, V. Ya. Chirva, Alexander Nosov, N. V. Tolkacheva, M. T. Khandy, D. V. Kochkin, G. P. Zaitsev, Alexander S. Shashkov
Publikováno v:
Chemistry of Natural Compounds. 52:664-668
One of the main furostanol glycosides in Dioscorea deltoidea suspension cell culture, i.e., protodioscin, was isolated and characterized structurally using NMR spectroscopy, high-resolution mass spectrometry, and an analysis of its accumulation.
Autor:
N. V. Tolkacheva, M. V. Voropaev
Publikováno v:
University proceedings. Volga region. Humanities.
Publikováno v:
Chemistry of Natural Compounds. 48:272-275
Two spirostanol saponins, one of which was a new compound, were isolated among the steroidal glycosides of Allium cyrillii Ten. Bulbs. The structures of these glycosides were established using chemical and spectral analytical methods as β-D-glycopyr
Autor:
A. S. Mikhaylenko, D. A. Timashkov, N. V. Ampilogov, K. G. Kompaniets, V. V. Shutenko, A. N. Dmitrieva, I. I. Yashin, N. V. Tolkacheva, A. A. Petrukhin, N. S. Barbashina
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 75:827-830
The first results are presented from the long-term experiment on registration of the response of the muon flux of cosmic rays to nonstationary atmospheric phenomena (storms) using the URAGAN muon hodoscope. The potential of the muon hodoscope enables
Autor:
G. C. Trinchero, V. V. Shutenko, G. Mannocchi, I. I. Yashin, D. V. Chernov, A. G. Bogdanov, N. V. Tolkacheva, D. M. Gromushkin, O. Saavedra, R. P. Kokoulin, A. A. Petrukhin
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 75:395-398
Characteristics of muon bundles detected with the DECOR detector are compared to predictions based on different hadron interaction models and various assumptions as to the spectrum and mass composition of primary cosmic rays. The intensity of primary
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 75:377-380
We analyze experimental data on cosmic ray muon bundles collected with a DECOR coordinate detector. Substantial variations in the intensity of the events are observed during the experiment. These variations are found to be caused by changes in atmosp
Publikováno v:
Chemistry of Natural Compounds. 40:35-39
Twelve acidic triterpene glycosides of oleanolic acid, two of which were new, were isolated from stem bark of Tetrapanax papyriferum C. Koch (Araliaceae). The structures of these compounds were established using chemical methods and NMR spectroscopy.
Publikováno v:
Chemistry of Natural Compounds. 37:173-176
Stem bark ofTetrapanaxpapyriferum yielded the new triterpene glycosides 3-O-[β-D-glucopyranosyl-(1→3)]-β-D-galactopyranosyl-(1→2)-O-α-L-arabinopyranosides of oleanolic and echinocystic acids and their 28-O-α-L-rhamnopyranosyl-(1→4)-O-β-D-g
Publikováno v:
Chemistry of Natural Compounds. 30:689-692
The leaves of common ivy have yielded 11 triterpene glycosides: the 3-O-α-L-pyranosides of oleanolic acid (1), of echinocystic acid (2), and of hederagenin; the 3-O-[O-α-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranoside]s of oleanolic acid (4), of e
Publikováno v:
Chemistry of Natural Compounds. 28:593-596
Echinocystic acid 3-sulfate and new 3-sulfates — of the 28-O-[O-α-L-rhamnopyranosyl-(1→4)-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl esters of oleanolic and echinocystic acids have been isolated from the leaves of Crimean ivyHedera tauric