Chemoenzymatic Synthesis of 3′-Deoxy-3′-(4-Substituted-Triazol-1-YL)-5-Methyluridine
摘要:
An efficient protocol has been developed for the synthesis of a small library of 3-deoxy-3-(4-substituted-triazol-1-yl)-5-methyluridine using Cu(I)-catalyzed Huisgen-Sharpless-Meldal 1,3-dipolar cycloaddition reaction of 3-azido-3-deoxy-5-methyluridine with different alkynes under optimized condition in an overall yields of 76%-92%. Here, the azido precursor compound, i.e., 3-azido-3-deoxy-5-methyluridine was chemoenzymatically synthesized from D-xylose in good yield. Some of the alkynes used in cycloaddition reaction were synthesized by the reaction of hydroxycoumarins or naphthols with propargyl bromide in acetone using K(2)CO(3)in excellent yields. All synthesized compounds were unambiguously identified on the basis of their spectral (IR, H-1-, C-13 NMR spectra, and high-resolution mass spectra) data analysis.
Chemoenzymatic Synthesis of 3′-Deoxy-3′-(4-Substituted-Triazol-1-YL)-5-Methyluridine
摘要:
An efficient protocol has been developed for the synthesis of a small library of 3-deoxy-3-(4-substituted-triazol-1-yl)-5-methyluridine using Cu(I)-catalyzed Huisgen-Sharpless-Meldal 1,3-dipolar cycloaddition reaction of 3-azido-3-deoxy-5-methyluridine with different alkynes under optimized condition in an overall yields of 76%-92%. Here, the azido precursor compound, i.e., 3-azido-3-deoxy-5-methyluridine was chemoenzymatically synthesized from D-xylose in good yield. Some of the alkynes used in cycloaddition reaction were synthesized by the reaction of hydroxycoumarins or naphthols with propargyl bromide in acetone using K(2)CO(3)in excellent yields. All synthesized compounds were unambiguously identified on the basis of their spectral (IR, H-1-, C-13 NMR spectra, and high-resolution mass spectra) data analysis.
Synthesis and Antiviral Evaluation of Azt Analogues with A Spacer Arm Between Glucidic and Base Moieties. Part II
作者:Vincent Roy、Rachida Zerrouki、Pierre Krausz、Géraldine Laumond、Anne Marie Aubertin
DOI:10.1080/15257770701426153
日期:2007.6.15
This article describes the synthesis of a series of AZT analogues bearing an acyclic chain between the sugar and the base moieties is described. These new compounds were readily obtained using microwave irradiation. The compounds were characterized by (1)H NMR and IR spectroscopy. Antiviral (HIV-1) properties of these compounds were examined.
本文描述了一系列在糖和碱基部分之间带有无环链的AZT类似物的合成。这些新化合物很容易通过微波辐射获得。通过(1)1 H NMR和IR光谱对化合物进行表征。检查了这些化合物的抗病毒(HIV-1)特性。
Synthesis of some modified 2′-5′-linked oligoriboadenylates of 2-5A core
作者:G. M. Visser、M. Tromp、J. van Westrenen、O. Schipperus、J. H. van Boom
DOI:10.1002/recl.19861050303
日期:——
The synthesis of three analogues of 2′-5′-linkedoligoriboadenylates is reported. Two trimers, having at the 2′-end a 3′-amino- (or 3′-tetradecanamido)-3′-deoxy-riboadenosine, were assembled via a phosphotriester approach. In the same way, we also prepared a tetramer carrying at the 2′-end β-L-riboadenosine instead of β-D-riboadenosine. The non-terminal building unit 3′,5′-O-(tetraisopropyldisiloxane-1