The high rate of glycolysis despite the presence of oxygen and mitochondria in tumor cells implies an important role for this process in cell division. The rate of glycolysis is assumed to be dependent on the cellular concentration of fructose 2,6-bisphosphate, the concentration of which in turn depends on a bifunctional enzyme and the ratio of this enzyme’s 6-phosphofructo-2-kinase versus its fructose 2,6-bisphosphatase activities. To prove the hypothesis that inhibition of glycolysis in tumor cells by 6-phosphofructo-2-kinase inhibitors would cause inhibition of tumor cell proliferation, ten N-bromoacetylethanolamine phosphate analogues were designed, synthesized, and tested. They were screened for their activities against various human tumor cell lines to study the effects of inhibition of glycolysis on cell proliferation. The relationship between the structure of these compounds and their inhibitory activity on cell proliferation was also discussed. It was found that the activity of N-(2-methoxyethyl)-bromoacetamide, N-(2-ethoxyethyl)-bromoacetamide, and N-(3-methoxypropyl)-bromoacetamide was comparable to that of the positive control AraC. These three inhibitors showed in vivo anticancer effects in P388 transplant BDF1 mice.
Switchable Smiles Rearrangement for Enantioselective <i>O</i>-Aryl Amination
作者:Xihao Chang、Qinglin Zhang、Chang Guo
DOI:10.1021/acs.orglett.9b01848
日期:2019.6.21
atropisomeric anilines from abundant and readily available precursors is one of the most challenging but valuable processes in organic synthesis. The use of highly efficient Smiles rearrangement to accomplish switchable enantioselective amination reactions of O-arenes provides access to nonsymmetric 2′-amino[1,1′-binaphthalen]-2-ol (i.e., NOBIN-type) and [1,1′-binaphthalene]-2,2′-diamine (i.e., BINAM-type)