Strategies for the selective synthesis of monosubstituted (dichloromethylene)bisphosphonate esters
作者:Marko J Ahlmark、Jouko J Vepsäläinen
DOI:10.1016/s0040-4020(97)10073-4
日期:1997.11
Strategies for the selectivesynthesis of monosubstituted (dichloromethylene)bisphosphonateesters Cl2C[P(O)(OR)(O−Na+)][P(O)(O−Na+)2], where R = Pr, Pri, Hex, Ph} starting from monophosph species or from symmetric/unsymmetric H2MBP or Cl2MBP tetraester compounds, including the preparation of mixed tetraesters, are described and compared.
选择性合成单取代(二氯亚甲基)双膦酸酯Cl 2 C [P(O)(OR)(O - Na +)] [P(O)(O - Na +)2 ]的策略,其中R = Pr,描述和比较了从单磷物质开始或从对称/不对称H 2 MBP或Cl 2 MBP四酯化合物开始的Pr i,Hex,Ph} ,包括混合四酯的制备。
Synthesis of potential bisubstrate inhibitors of Leishmania elongating α-d-mannosyl phosphate transferase
作者:Vladimir S. Borodkin、Michael A.J. Ferguson、Andrei V. Nikolaev
DOI:10.1016/j.tetlet.2003.11.022
日期:2004.1
Synthesis of a potential mechanism-based bisubstrate inhibitor 1 of the elongating alpha-D-mannosyl phosphate transferase in Leishmania, comprising a guanosine subunit bound to the synthetic acceptor substrate through the methylenebisphosphonate linker, as well as its analogues 2 and 3 has been successfully accomplished. (C) 2003 Elsevier Ltd. All rights reserved.
Synthesis of Stable Analogues of Thiamine Di- and Triphosphate as Tools for Probing a New Phosphorylation Pathway
Thiamine (vitamin B1) is an essential nutritional factor metabolized inside the body in its mono-, di-, and triphosphate forms. Although the action of thiamine and thiamine diphosphate have been intensely investigated, many questions remain unanswered and the role of thiamine triphosphate is still especially unknown. To probe recent hypotheses on the implication of thiamine triphosphate in a new phosphorylation pathway involving synaptic proteins, we synthesized a series of thiamine di- and triphosphate analogues that are resistant to both enzymatic and chemical hydrolyses. The key step in the preparation of the title compounds is the coupling of thiamine propyl disulfide with adequately protected methylenebisphosphonic acid, the corresponding triphosphate analogue, and difluoromethylenebisphosphonic acid.