Highly Potent Bisphosphonate Ligands for Phosphoglycerate Kinase
摘要:
We have synthesized a series of novel analogs of 1,3-bisphospho-D-glyceric -acid, 1,3-BPG,(3) and evaluated their binding to phosphoglycerate kinase, PGK (EC 2.7.2.3). Nonscissile methane-phosphonic acids replace the two phosphate monoesters of 1,3-BPG and lead to several stable, tight-binding mimics of this intermediate species in glycolysis. Multiple fluorine substitution for hydrogen in the alpha-methylene groups of the phosphonic acid 1,3-BPG analogs markedly improves their binding to PGK as determined by NMR analysis. The best ligands bind some 50-100 times more strongly than does the substrate 3-phospho-D-glyceric acid and show a requirement for PKa3 to be generally below 6.0, while the presence of a beta-carbonyl group seems to be of secondary importance.
Automated lineshape analysis of complex NMR spectra for a novel synthetic tetrafluorobisphosphonate, a potential ligand for phosphoglycerate kinase
摘要:
Tetraalkyl 1,1,3,3-tetrafluoro-2,2-dihydroxypropane-1,3-bisphosphonates were prepared. The complex P-31{H-1}- and F-19-NMR spectra were analyzed as [[A](2)X](2) and related systems. Modern methods of automated spectral analysis using DAISY under WIN-NMR were applied.
Ring-opening reactions of functionalized 1,2-cyclic sulfates and oxetanes with the phosphonodifluoromethyl carbanion are reported. This approach allows an easy access to fluorinated beta-hydroxyphosphonates that are building blocks in the synthesis of acyclic nucleosides. Synthesis of precursors of nucleoside phosphorylase inhibitors from these alcohols is described.
as starting chemicals. To circumvent this limitation, we report the preparation of a thioether as a new source of the lithiodifluoromethylphosphonate. This methodology avoiding the use of HCFCs involves a selective fluorination of sulfide followed by a thiaphilic addition of an organometallic reagent, which offers an alternative route to obtain phosphonodifluoromethyl carbanion. A contrasted reactivity
Synthesis and crystal structure of an iridium complex containing the novel electron-poor hybrid monoanionic ligand Ph2PCF2PO2(OiPr)
作者:Daniel J. Sattler、Jake B. Bailey、Douglas B. Grotjahn
DOI:10.1016/j.poly.2022.116162
日期:2022.12
a wide variety of ligands with almost any substituent are available. However, the vast majority of these phosphines have been relatively electron-rich. Monooxides of bisphosphines have been shown to form complexes that catalyze alkene polymerizations and hydroformylations. However, electron-poor versions of such ligands have not yet been explored. In this report, the hybrid ligand Ph2PCF2PO2(OiPr) with
膦长期以来一直用于催化,并且可以使用具有几乎任何取代基的多种配体。然而,这些膦中的绝大多数都是相对富电子的。已显示双膦的一氧化物形成催化烯烃聚合和加氢甲酰化的络合物。然而,尚未探索此类配体的缺电子形式。在本报告中,合成了具有膦和膦酸酯部分的杂化配体Ph 2 PCF 2 PO 2 (O i Pr),与缺电子CF 2基团连接。合成并表征了配体的 Cp*Ir 复合物。
Fluorination of methanediphosphonate esters by perchloryl fluoride. Synthesis of fluoromethanediphosphonic acid and difluoromethanediphosphonic acid
作者:Charles E. McKenna、Pei-De Shen
DOI:10.1021/jo00335a053
日期:1981.10
Blackburn, G. Michael; Guo, Mao-Jun; Taylor, Steven, Phosphorus, Sulfur and Silicon and the Related Elements, 1993, vol. 75, # 1-4, p. 139 - 142
作者:Blackburn, G. Michael、Guo, Mao-Jun、Taylor, Steven