Provided is a process for the preparation of certain bisphosphonate compounds and their ester derivatives. In this process certain bisphosphonate compounds such as medronic acid is prepared via the reaction of the corresponding isopropyl esters with (i) trimethylsilylbromide or trimethylsilyl iodide, or (ii) trimethylsilyl chloride and an alkali metal iodide or bromide; followed by treatment with a liquid comprising water. The process surprisingly provides the desired compounds, despite having relatively bulky ester groups such as isopropyl on the starting material bisphosphonate ester.
Konstantinovskaya, M. A.; Sinyavskaya, E. I., Russian Journal of Inorganic Chemistry, 1978, vol. 23, p. 854 - 858
作者:Konstantinovskaya, M. A.、Sinyavskaya, E. I.
DOI:——
日期:——
Blackburn, G. Michael; Forster, Alan R.; Guo, Mao-Jun, Journal of the Chemical Society. Perkin transactions I, 1991, # 11, p. 2867 - 2872
作者:Blackburn, G. Michael、Forster, Alan R.、Guo, Mao-Jun、Taylor, Graham E.