Zobrazeno 1 - 10 of 32 pro vyhledávání: '"E. D. Daeva"'
1
Lithiation and silylation of 7-amino-3-tert-butyl-4-oxopyrazolo[5,1-c][1,2,4]triazines
Autor: E. D. Daeva, Sergey M. Ivanov, L. M. Mironovich, Mikhail E. Minyaev
Publikováno v: Russian Chemical Bulletin. 69:1009-1021
The treatment of 7-amino-8-bromo-3-tert-butylpyrazolo[5,1-c][1,2,4]triazin-4(6H)-one with an excess of NaH in THF and AlkLi (Alk = Bun, But) at -97 °C produced disodium (8-lithio-3-tert-butyl-4-oxopyrazolo[5,1-c][1,2,4]triazin-1-id-7-yl)amide unstab
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::89c6604b32555105a87879a3a9d9217e
https://doi.org/10.1007/s11172-020-2862-z
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2
Flavonoids from Herb of Monarda fistulosa
Autor: V. I. Kadentsev, A. S. Lapina, E. D. Daeva, V. A. Kurkin
Publikováno v: Chemistry of Natural Compounds. 56:242-245
Monardoside (apigenin 5-O-rutinoside), which was a new natural compound, isorhoifolin (apigenin 7-O-rutinoside), linarin (acacetin 7-O-rutinoside), and didymin (isosacuranetin 7-O-rutinoside) were isolated and characterized from the herb of Monarda f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a2a8ad50ef9b213c29dc214791480a41
https://doi.org/10.1007/s10600-020-02997-1
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4
Alkylation of 3-tert-Butylpyrimido[4′,5′:3,4]pyrazolo[5,1-c]-[1,2,4]triazine-4,10(1H,9H)-diones and -dithiones
Autor: E. D. Daeva, Sergey M. Ivanov, L. M. Mironovich
Publikováno v: Russian Journal of Organic Chemistry. 55:958-963
The condensation of 7-amino-1-benzyl-3-tert-butyl-4-oxo-1,4-dihydropyrazolo[5,1-c][1,2,4]triazine-8-carbonitrile with formic acid afforded 1-benzyl-3-tert-butylpyrimido[4′,5′:3,4]pyrazolo[5,1-c][1,2,4]-triazine-4,10(1H,9H)-dione which was also sy
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::304e4842e42e9907817a358fb2fa25ea
https://doi.org/10.1134/s1070428019070066
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5
Constituents from Leaves of Crataegus sanguinea
Autor: E. D. Daeva, A. V. Kurkina, V. A. Kurkin, V. I. Kadentsev, O. E. Pravdivtseva, T. V. Morozova
Publikováno v: Chemistry of Natural Compounds. 55:21-24
Leaves of Crataegus sanguinea Pall. afforded for the first time ergosterol 3-O-β-D-glucopyranoside, p-coumaric acid 4-O-β-D-glucopyranoside, trifolin, quercitrin, the new compound sanguineoside (5,7,3′,5′-tetrahydroxyflavanone 7-O-β-D-glucopyr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b674671cc49b7e4fe35e3a5f05cb2653
https://doi.org/10.1007/s10600-019-02606-w
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6
Synthesis and Transformations of 8,8′-(1,4-Dihydro-1,2,4,5-tetrazine-3,6-diyl)- bis[7-R-3-tert-butylpyrazolo[5,1-c][1,2,4]triazin-4(6H)-ones]
Autor: Sergey M. Ivanov, L. M. Mironovich, E. D. Daeva
Publikováno v: Russian Journal of Organic Chemistry. 54:1825-1830
New 8,8′-(1,4-dihydro-1,2,4,5-tetrazine-3,6-diyl)bis[7-R-3-tert-butylpyrazolo[5,1-c][1,2,4]triazin- 4(6H)-ones] (R = H, NH2, NHAc) were synthesized by reaction of 3-tert-butyl-4-oxo-1,4-dihydropyrazolo- [5,1-c][1,2,4]triazine-8-carbonitriles with h
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2624c6bfc2cb4bcb8d71a0d54ee2af49
https://doi.org/10.1134/s1070428018120151
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7
Xanthopurposide, A New Anthraglycoside from Rubia tinctorum Rhizomes
Autor: M. V. Rybalko, V. A. Kurkin, E. D. Daeva, V. I. Kadentsev, A. A. Shmygareva
Publikováno v: Chemistry of Natural Compounds. 57:14-15
The new natural compound 3-hydroxy-1-O-[β-D-xylopyranosyl-(1→6)-β-D-glucopyranosyl]-anthraquinone, which we called xanthopurposide, was isolated from rhizomes of Rubia tinctorum L. (madder). Its structure was elucidated using PMR, 13C NMR, mass s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7dd104d7e46dd8f8727d807ed21a97d5
https://doi.org/10.1007/s10600-021-03269-2
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8
Reduction and diazotization of ethyl 7-amino-3-tert-butyl-4-oxo-4,6-dihydropyrazolo[5,1-c][1,2,4]triazine-8-carboxylate
Autor: Sergey M. Ivanov, L. M. Mironovich, A. O. Chizhov, E. D. Daeva
Publikováno v: Russian Journal of Organic Chemistry. 53:577-581
The ester group in ethyl 7-amino-3-tert-butyl-4-oxo-4,6-dihydropyrazolo[5,1-c][1,2,4]triazine-8-carboxylate was converted for the first time to methyl by the action of lithium tetrahydridoborate in the presence of boron trifluoride–diethyl ether co
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8249ab315bb364b23c6d982f74295db2
https://doi.org/10.1134/s1070428017040133
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10
Constituents of Arctostaphylos uva-ursi Leaves
Autor: T. K. Ryazanova, V. A. Kurkin, V. I. Kadentsev, E. D. Daeva
Publikováno v: Chemistry of Natural Compounds. 54:278-280
A new natural compound p-digallic acid ethyl ester and 1,3,6-trigalloylglucose first time isolated from Arctostaphylos uva-ursi, and also known for this plant compounds tetragalloylglucose, gallic acid, arbutin, and hyperoside were characterized by P
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4bca3d265e524164350eeb2fb1eafe62
https://doi.org/10.1007/s10600-018-2323-1
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