New Efficient Synthesis of 1-Hydroxymethylene-1,1-Bisphosphonate Monomethyl Esters
作者:Marc Lecouvey、Evelyne Migianu、Erwann Guénin
DOI:10.1055/s-2004-837226
日期:——
A newefficient procedure for the synthesis of 1-hydroxymethylene-1,1-bisphosphonate monomethyl esters in three steps from acid chlorides is reported here.
作者:Mitsuo Fujii、Kouji Ozaki、Mitsuo Sekine、Tsujiaki Hata
DOI:10.1016/s0040-4020(01)81630-6
日期:1987.1
synthesized by a new method via dideoxyribonucleoside 2,2,2-trichloroethoxycarbonylphosphonates and aroylphosphonates. The conversion of dideoxyribonucleoside 2,2,2-trichloroethoxycarbonylphosphonates to dideoxyribonucleoside trimethylsilyl phosphites by treatment with Me3SiCl-Zn-acetylacetone proceeded with retention configuration at phosphorus. The silylphosphite intermediates were converted to the phosphorothioates
Convenient synthesis of unesterified acylphosphonic acids
作者:Mitsuo Sekine、Tsujiaki Hata
DOI:10.1039/c3978000285b
日期:——
A general method for the synthesis of a new type of compounds, unesterifiedacylphosphonicacids, is described, involving reactions of tris(trimethylsilyl) phosphite with acyl chlorides followed by solvolysis of the products using aniline-containing alcohols.
An efficient synthetic method of nucleoside-5'-(1-hydroxymethylene- 1,1-bisphosphonates) is reported here. The procedure was optimized with 3'-protected thymidine and then applied to synthesis Of new AZT analogues.