Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Dimiter D. Petkov"'
Publikováno v:
Protein & Peptide Letters. 17:889-898
Bz(NO2)-Orn(Boc)-OCH2CN was synthesized as an amino acid component with effective and successful orthogonal protection for amino acylation of 5-O-Pivaloyl nucleosides and preparation of substrates for model ribosome reactions. The synthesis was carri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf2447428cea45fccb78d6a764169a1b
https://doi.org/10.2174/092986610791306625
https://doi.org/10.2174/092986610791306625
Publikováno v:
Organic Communications, Vol 1, Iss 2, Pp 17-23 (2008)
The synthesis of four new peptidyl nucleosides is reported. The kinetic data obtained for the transesterification of 2'/3'-O-benzyloxycarbonyl-L-p-nitrophenylalanyl 5'-O-trityl ribonucleosides which contain different substituents at C 6 position of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::a52f9199f771d2c91830db9147af1739
Publikováno v:
Tetrahedron Letters. 48:2381-2384
Using kinetic isotope effects (KIE) and Hammett correlations, we show that the main role of the adenosine 2′-OH group on deprotonation by the non nucleophilic base DBU during external acyl group transfer is to generate enhanced electron density on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba59a8c8f4ef30e2a4391adf8e38efb9
https://doi.org/10.1016/j.tetlet.2007.01.139
https://doi.org/10.1016/j.tetlet.2007.01.139
Publikováno v:
International Journal of Quantum Chemistry. 106:1346-1356
This work reports a density functional study of the mechanism of acyl migration between vicinal OH groups in monoformylated cis-tetrahydrofuran-3,4-diol as a model system for the acyl migration in amino-acylated tRNA. In addition, migration toward th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0d7f617a66c780085dbae0dafb329c5
https://doi.org/10.1002/qua.20892
https://doi.org/10.1002/qua.20892
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 179:1095-1111
The phosphonylation by oxirane/phosphorous acid is characterized by formation of spirophosphorane, which provides the active intermediate in the reaction, β-hydroxyalkyl alkylene phosphite. Here, we demonstrate that a well-known and readily accessib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3520de5094c73eb42ff5092187155782
https://doi.org/10.1080/10426500490459713
https://doi.org/10.1080/10426500490459713
Publikováno v:
Journal of Peptide Science. 8:8-12
The aminolysis of a mildly activated aminoacid ester, benzyloxycarbonyl-L-phenylalanine cyanomethyl ester, by glycine esters in the presence of catechol has been studied as a model of catalysis by RNA cis-vicinal-diol systems in protein biosynthesis.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98796937ab213ce7ab8843b544840231
https://doi.org/10.1002/psc.362
https://doi.org/10.1002/psc.362
Autor:
Dimiter D. Petkov, Gabriela D. Ivanova, Nikolay G. Vassilev, Christo D. Roussev, Emilia K. Bratovanova
Publikováno v:
Journal of the American Chemical Society. 121:11267-11272
The intriguing chemical mechanism of the external transesterification by which large ribozymes (group I, group II, and spliceosomal introns) splice RNA has been found to operate in the methanolysis of ribonucleoside 2'-/3'-dimethyl phosphates in non-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3e6c10135f2a844b2e584282bf35940
https://doi.org/10.1021/ja990491r
https://doi.org/10.1021/ja990491r
Autor:
Rositza T. Momtcheva, Svetomir B. Tzokov, and Jose Kaneti, Nikolay G. Vassilev, Dimiter D. Petkov
Publikováno v:
Journal of the American Chemical Society. 121:5103-5107
The hydrolysis of H-phosphonodiesters bearing a vicinal hydroxyl group is found to be subject to two competing reaction pathways in aprotic organic media. An observation of the increased proportion of cis-1,2-diol leaving with decrease of the water c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::834a65a30997b4ca4fca5f09bf8d4453
https://doi.org/10.1021/ja982413u
https://doi.org/10.1021/ja982413u
Publikováno v:
Nucleosides and Nucleotides. 16:1875-1882
Pα-methyl deoxynucleoside triphosphates are used as substrates for E. coli DNA polymerase I in template-directed polymerase reactions. It is shown that the modified compounds are incorporated together with the unmodified deoxynucleoside triphosphate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed4642b7253adbbc512a984825f1292b
https://doi.org/10.1080/07328319708002540
https://doi.org/10.1080/07328319708002540
Autor:
Magda A. Dineva, Dimiter D. Petkov
Publikováno v:
Nucleosides and Nucleotides. 15:1459-1467
5′-O-(methylphosphonyl)-N-(phenylacetyl)-2 ′-deoxycytidine, deoxyadenosine and deoxyguanosine were pyrophosphorylated and the resulting N-protected P α-methyl nucleoside triphosphates were deblocked by treatment with penicillin amidase at pH 7.8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2b41a5dd888c9a0f5c918caa0d2d502
https://doi.org/10.1080/07328319608002447
https://doi.org/10.1080/07328319608002447