Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Jože Kobe"'
Publikováno v:
Synthesis. 2004:2026-2034
Reaction of N 2 -acetyl-9- and/or -7-benzylated guanines 8 and 12 with selected alkylating agents in l-methyl-2-pyrrolidone at 120 °C yielded the guaninium salts 9 and 13. The salts were consequently transformed by phase transfer hydrogenation into
Publikováno v:
International Journal of Mass Spectrometry. 230:141-150
Relative stabilities (ΔGc) of ammonium-bound monomers and dimers of anomeric β- d -pentofuranosyl 1α- and 1β-azide derivates are determinate using the kinetic method by measuring relative rates of competitive collision-induced dissociations of di
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 59:o221-o224
The two title ethoxycarbonylmethoxy derivatives of calix[4]arene, namely diethyl 2,4-dihydroxycalix[4]arene-1,3-diyldi(oxyacetate), C36H36O8, (I), and tetraethyl calix[4]arene-1,2,3,4-tetrayltetra(oxyacetate), C44H48O1
Autor:
Andrzej Surdykowski, Edward Szłyk, Jerzy Sitkowski, Iwona Łakomska, Jože Kobe, Tadeusz Głowiak
Publikováno v:
Polyhedron. 21:2001-2007
A platinum(II) complex with 1-β- d -ribofuranosyl-1,2,4-triazole-3-carboxamide is obtained and characterised spectroscopically with 1H, 13C, 15N, 195Pt NMR and IR. Significant 15N NMR coordination shifts (−92.7 and +18.4 ppm) were observed, respec
Publikováno v:
Rapid Communications in Mass Spectrometry. 15:551-562
Electron impact (EI), fast atom bombardment (FAB) and ammonia chemical ionization [CI(NH3)] mass spectrometry were applied with the aim of differentiating between the anomeric 1α- and 1β-azidopentofuranosyl derivatives. Calculated ammonium affiniti
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1433-1438
A variable temperature-dependent 1H NMR conformational analysis of 3JHH coupling constants and NOE enhancements of a series of 8-aza-3-deaza modified guanine nucleosides 2 and 4–8 has been performed in DMSO-d6 and the results compared to those for
Autor:
Jože Kobe, Anton Stimac
Publikováno v:
Carbohydrate Research. 324:149-160
The stereoselectivity of the 1,2-trans directed, Lewis acid-catalysed azidation of peracylated furanoses was found to depend on the reactivity of the azide donor (azide nucleophilicity) and the configuration at the anomeric centre relative to the nei
Publikováno v:
Synlett. 1999:1069-1073
Autor:
Jože Kobe, Barbara Mohar
Publikováno v:
Nucleosides and Nucleotides. 18:443-456
Multi-step transformation of enantiomerically pure synthons, (1S,2S,3R,4R)-(4-hydroxymethyl-2,3-isopropylidenedioxy-l-cyclopentyl) methyl butyrate {(-)-5} and(1R,5R,6R,7S)-6,7-(isopropylidenedioxy)-3-oxabicyclo[3.2.1]octane-2-one {(+)-11} into carba-
Publikováno v:
Journal of the American Chemical Society. 120:2508-2513
A variable temperature 600 MHz 1H NMR conformational analysis of 3JHH coupling constants in pyrazolo[4,3-c]pyridine carbaribo-C-nucleoside 1 in D2O has shown that the carbocyclic nucleoside analogu...