Alpha-HYDROXY, alpha-SUBSTITUTED METHYLENEBISPHOSPHONATES AND PHOSPHONOACETATES
申请人:McKenna Charles E.
公开号:US20080200679A1
公开(公告)日:2008-08-21
The present invention relates to a method for preparing α-hydroxy, α-substituted methylenebisphosphonates and phosphonoacetates via addition of Grignard or organoindium reagents to tetraalkyl carbonylbisphosphonates and trialkyl carbonylphosphonoacetates. Also disclosed are compounds so synthesized.
various carboxylic acids, a one-pot procedure for the synthesis of the corresponding 1-hydroxy-1,1-bis(phosphonic acid)s is reported. The efficiency of this simple methodology is illustrated by synthesizing well-known marketable amino hydroxy bis(phosphonate)s such as alendronate or N-methyl pamidronate without additional steps for the protection/deprotection of the amine function.
Synthesis of 1-Hydroxymethylene-1,1-bis(phosphonic acids) from Acid Anhydrides: Preparation of a New Cyclic 1-Acyloxymethylene-1,1-bis(phosphonic acid)
Bisphosphonate derivatives, their preparations and uses
申请人:——
公开号:US20030036537A1
公开(公告)日:2003-02-20
The present invention relates to derivatives of 1-hydroxymethylene-1,1-bisphosphonic acid, the pharmaceutical compositions comprising them, and their application in therapeutics, particularly for the treatment of cancerous tumors. It is also directed to a methods of preparation of such derivatives.
inhibitors of the phosphorolytic activity of native and drug-resistant forms of HIV-1 reverse transcriptase (RT) was performed. It was shown that with the increase of the inhibitory potential of BPs towards the phosphorolytic activity raises their ability to inhibit the RT-catalyzed DNA elongation. Herein, we report the impact of the thymidine analog mutations (TAM) on the activity of bisphosphonates, as well