Synthesis and Calcium Mobilization Activity of cADPR Analogues Which Integrate Nucleobase, Northern and Southern Ribose Modifications
作者:Yue Zhou、Peilin Yu、Hongwei Jin、Zhenjun Yang、Jianbo Yue、Liangren Zhang、Lihe Zhang
DOI:10.3390/molecules17044343
日期:——
Novel cADPR mimics, which integrate nucleobase, northern and southern ribose modifications were synthesized. The key steps of the synthesis were a Cu(I)-catalyzed Hüisgen [3+2] cycloaddition and a microwave-assisted intramolecular pyrophosphorylation. Preliminary biological investigations showed that these cADPR mimics are membrane-permeating agonists of the calcium signaling pathway. The introduction of chlorine or fluorine at the 2'-position of the southern riboses led to a decrease of activity. The existence of a hydrophobic group on the 3'-OH of the southern riboses does not obviously alter the agonistic activity.
我们合成了新型的 cADPR 模拟物,它整合了核碱基、北核糖和南核糖修饰。合成的关键步骤是 Cu(I)催化的 Hüisgen [3+2] 环加成和微波辅助的分子内焦磷酸化。初步的生物学研究表明,这些 cADPR 模拟物是钙信号通路的膜渗透激动剂。在南部核糖的 2'- 位上引入氯或氟会导致活性降低。南方核糖 3'-OH 上疏水基团的存在并不会明显改变其激动活性。