Zobrazeno 1 - 10
of 285
pro vyhledávání: '"Joachim W. Engels"'
Autor:
Abdelaaziz Ouahrouch, Moha Taourirte, Joachim W. Engels, Soumaya Benjelloun, Hassan B. Lazrek
Publikováno v:
Molecules, Vol 19, Iss 3, Pp 3638-3653 (2014)
In this study, we describe the synthesis of 1,4-disustituted-1,2,3-triazolo-quinazoline ribonucleosides or acyclonucleosides by means of 1,3-dipolar cycloaddition between various O or N-alkylated propargyl-quinazoline and 1'-azido-2',3',5'-tri-O-benz
Externí odkaz:
https://doaj.org/article/74b8402f3c3e4ee6ae20232f35ea1a55
Publikováno v:
Molecules, Vol 17, Iss 1, Pp 179-190 (2011)
A series of novel mono-1,2,3-triazole and bis-1,2,3-triazole acyclonucleoside analogues of 9-(4-hydroxybutyl)guanine was prepared via copper(I)-catalyzed 1,3-dipolar cycloaddition of N-9 propargylpurine, N-1-propargylpyrimidines/as-triazine with the
Externí odkaz:
https://doaj.org/article/ff46baa50316436e958f298c1123b90a
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 3, Pp o214-o215 (2015)
In the title compound, C20H24N2O4, both peptide bonds adopt a trans configuration with respect to the —N—H and —C=O groups. The dihedral angle between the aromatic rings is 53.58 (4)°. The molecular conformation is stabilized by an intramolecu
Externí odkaz:
https://doaj.org/article/c47784252f6b4d838d4c604eeadf6c6e
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 7, Pp o1028-o1028 (2013)
The title compound, C12H20N4O, undergoes a phase transition on cooling. The room-temperature structure is tetragonal (P43212, Z′ = 1), with the methoxybornyl group being extremely disordered. Below 213 K the structure is orthorhombic (P212121, Z′
Externí odkaz:
https://doaj.org/article/463797dd57eb466889e081f792b649dd
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 6, Pp o1908-o1908 (2012)
In the title molecule, C18H17N5O2, the dihedral angle between the benzene plane and the benzimidazole plane is 19.8 (1)° and the angle between the benzene plane and the triazole plane is 16.7 (1)°. In the crystal, molecules are connected by O—H..
Externí odkaz:
https://doaj.org/article/93cfb1033e4441aaab9505157ace5c4b
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 8, Pp o1848-o1848 (2009)
The five-membered ring of the title compound, C10H14NO, is almost planar [mean deviation from best plane = 0.006 (1) Å]. The N—O bond is in the plane of the five-membered ring. The molecule is positioned about a pseudo-mirror plane at y = 0.375. I
Externí odkaz:
https://doaj.org/article/2383a79e0eee480e98f0bd4d6de9be57
Publikováno v:
ChemPhysChem. 17:1369-1376
This article presents a comprehensive study of the photophysics of 2-(2-pyrenylethynyl) adenosine and 2-(4-pyrenylethynyl) adenosine, which are structural isomers of the well-established fluorescent RNA label 2-(1-pyrenylethynyl) adenosine. We perfor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e01d2ff2275be28fb8b1bfaababf0181
https://doi.org/10.1002/cphc.201500958
https://doi.org/10.1002/cphc.201500958
Analytical methods are the essential enabling tools of the modern biosciences. This book presents a comprehensive introduction into these analytical methods, including their physical and chemical backgrounds, as well as a discussion of the strengths
Publikováno v:
The journal of physical chemistry. B. 121(14)
The pyrene-based RNA-fluorescence label 2-(2-pyrenylethynyl) adenosine (2PyA) shows triexponential fluorescence, which depends strongly on the excitation wavelength. Most strikingly, a structured, long-lived fluorescence is observed in solution at ro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b23e82969030d7ee056c0accdf972c9d
https://pubmed.ncbi.nlm.nih.gov/28301163
https://pubmed.ncbi.nlm.nih.gov/28301163
Publikováno v:
Organic Letters. 16:5128-5131
The synthesis and use of the new nucleobase-caged nucleotides dT(pHP) and dT(NDEACM) is reported. Through a combination of time and wavelength selectivity four levels of selective uncaging with only two cages, and only two wavelengths, were obtained.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2615736f8d53caf70313c280a7f5f847
https://doi.org/10.1021/ol502478g
https://doi.org/10.1021/ol502478g