Synthesis and Antiviral Activities of 8-Alkynyl-, 8-Alkenyl-, and 8-Alkyl-2'-deoxyadenosine Analogs
摘要:
Palladium-catalyzed cross-coupling of 8-bromo-2'-deoxyadenosine with terminal alkynes in the presence of copper(I) iodide in dimethylformamide resulted in a series of 8-(1-alkyn-1-yl)-2'-deoxyadenosines. Hydrogenation of alkynyl derivatives over 10 % Pd/C under atmospheric pressure gave 8-n-alkyl analogues in nearly quantitative yields. On partial saturation of heptynyl, pentynyl, and propynyl derivatives over Lindlar catalyst, the corresponding cis-olefins were obtained along with minor amounts of trans isomers. Of the analogues tested, the following showed some activity, i.e. they were found to be active at concentrations that were at least 3-fold lower than the cytotoxic concentrations: the 8-heptynyl derivative against vaccinia virus (VV), vesicular stomatitis virus (VSV), cytomegalovirus (CMV), and respiratory syncytial virus (RSV); the 8-propyl derivative against varicella-zoster virus (VZV) and CMV; the 8-pentyl derivative against CMV; the 8-heptyl derivative against VV, CMV, RSV, and influenza A; slid the 8-heptenyl derivative against VV, RSV, and influenza A. The unsubstituted 2'-deoxyadenosine did not show any antiviral effect, except against RSV. Except for 8-propyl-dA, the antivirally active dA analogues were rather inhibitory to the growth of human embryonic lung cells. The most cytotoxic was the 8-ethynyl derivative.
为了增加具有改善的性质的荧光碱基类似物的多样性,我们在这里提出了一种新的荧光腺嘌呤类似物三唑腺嘌呤(A的简单的基于点击化学合成Ť)及其光物理内DNA表征。甲Ť示出有前途的性能相比,广泛使用的腺嘌呤类似物2-氨基嘌呤。单链和双链 DNA 的量子产率分别达到 >20% 和 >5%,并且显示出对相邻碱基的依赖性。此外,A T仅显示 DNA 双链体的轻微不稳定,与 2-氨基嘌呤相当,并且圆二色性研究表明 A T仅对正常 B-DNA 造成最小的结构扰动。此外,我们发现 A T显示出与胸腺嘧啶良好的碱基配对特性,更令人惊讶的是,它与正常腺嘌呤也显示出良好的碱基配对特性。总之,A T作为一种新的荧光腺嘌呤类似物显示出强大的潜力,用于监测 DNA 微环境内的变化。
Characterization of photophysical and base-mimicking properties of a novel fluorescent adenine analogue in DNA
作者:Anke Dierckx、Peter Dinér、Afaf H. El-Sagheer、Joshi Dhruval Kumar、Tom Brown、Morten Grøtli、L. Marcus Wilhelmsson
DOI:10.1093/nar/gkr010
日期:2011.5
diversity of fluorescent base analogues with improved properties, we here present the straightforward click-chemistry-based synthesis of a novel fluorescent adenine-analogue triazole adenine (AT) and its photophysical characterization inside DNA. AT shows promising properties compared to the widely used adenine analogue 2-aminopurine. Quantum yields reach >20% and >5% in single- and double-stranded DNA, respectively
为了增加具有改善的性质的荧光碱基类似物的多样性,我们在这里提出了一种新的荧光腺嘌呤类似物三唑腺嘌呤(A的简单的基于点击化学合成Ť)及其光物理内DNA表征。甲Ť示出有前途的性能相比,广泛使用的腺嘌呤类似物2-氨基嘌呤。单链和双链 DNA 的量子产率分别达到 >20% 和 >5%,并且显示出对相邻碱基的依赖性。此外,A T仅显示 DNA 双链体的轻微不稳定,与 2-氨基嘌呤相当,并且圆二色性研究表明 A T仅对正常 B-DNA 造成最小的结构扰动。此外,我们发现 A T显示出与胸腺嘧啶良好的碱基配对特性,更令人惊讶的是,它与正常腺嘌呤也显示出良好的碱基配对特性。总之,A T作为一种新的荧光腺嘌呤类似物显示出强大的潜力,用于监测 DNA 微环境内的变化。
Synthesis and Antiviral Activities of 8-Alkynyl-, 8-Alkenyl-, and 8-Alkyl-2'-deoxyadenosine Analogs
作者:Gyula Sagi、Laszlo Otvos、Satoru Ikeda、Graciela Andrei、Robert Snoeck、Erik De Clercq
DOI:10.1021/jm00035a010
日期:1994.4
Palladium-catalyzed cross-coupling of 8-bromo-2'-deoxyadenosine with terminal alkynes in the presence of copper(I) iodide in dimethylformamide resulted in a series of 8-(1-alkyn-1-yl)-2'-deoxyadenosines. Hydrogenation of alkynyl derivatives over 10 % Pd/C under atmospheric pressure gave 8-n-alkyl analogues in nearly quantitative yields. On partial saturation of heptynyl, pentynyl, and propynyl derivatives over Lindlar catalyst, the corresponding cis-olefins were obtained along with minor amounts of trans isomers. Of the analogues tested, the following showed some activity, i.e. they were found to be active at concentrations that were at least 3-fold lower than the cytotoxic concentrations: the 8-heptynyl derivative against vaccinia virus (VV), vesicular stomatitis virus (VSV), cytomegalovirus (CMV), and respiratory syncytial virus (RSV); the 8-propyl derivative against varicella-zoster virus (VZV) and CMV; the 8-pentyl derivative against CMV; the 8-heptyl derivative against VV, CMV, RSV, and influenza A; slid the 8-heptenyl derivative against VV, RSV, and influenza A. The unsubstituted 2'-deoxyadenosine did not show any antiviral effect, except against RSV. Except for 8-propyl-dA, the antivirally active dA analogues were rather inhibitory to the growth of human embryonic lung cells. The most cytotoxic was the 8-ethynyl derivative.