Invention Grant
- Patent Title: Process for producing biphosphonic acids and forms thereof
- Patent Title (中): 制备双膦酸的方法及其形式
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Application No.: US11922064Application Date: 2005-06-13
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Publication No.: US07872144B2Publication Date: 2011-01-18
- Inventor: Satish Chandra Pandey , Hussain Haider , Sudhanshu Saxena , Manoj Kumar Singh , Rajesh Kumar Thaper , Sushil Kumar Dubey
- Applicant: Satish Chandra Pandey , Hussain Haider , Sudhanshu Saxena , Manoj Kumar Singh , Rajesh Kumar Thaper , Sushil Kumar Dubey
- Applicant Address: IN Noida
- Assignee: Jubilant Organosys Limited
- Current Assignee: Jubilant Organosys Limited
- Current Assignee Address: IN Noida
- Agency: Blank Rome LLP
- International Application: PCT/IN2005/000192 WO 20050613
- International Announcement: WO2006/134603 WO 20061221
- Main IPC: C07F9/38
- IPC: C07F9/38 ; C07F9/06
Abstract:
Disclosed herein is a process for producing bisphosphonic acids and salts thereof. The process comprising reacting a carboxylic acid of Formula [I] with phosphorous acid and halophosphorus compound in the presence of a solvent selected from aliphatic hydrocarbon or water miscible cyclic ether. Further, the present invention also provides novel forms of bisphosphonic acids and process for preparation thereof.
Public/Granted literature
- US20090312551A1 Process for producing biphosphonic acids and forms thereof Public/Granted day:2009-12-17
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