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US 8,569,514 B1Granted
Process for the preparation of strontium ranelate
AssigneeDivi's Laboratories, Ltd.
InventorsMurali Krishna Prasad Divi, Mysore Aswatha Narayana Rao, Shaik Nowshuddin
Life of this patent
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Abstract
Strontium ranelate is prepared by reacting dicyclohexylammonium ranelate with strontium halide in an anhydrous solvent. Strontium ranelate thus obtained will have less than 3% moisture content.
Claims14
A process for the preparation of strontium ranelate having less than 3% moisture content which comprises:
- a) reacting ranelic acid with dicyclohexylamine in an anhydrous solvent to obtain dicyclohexylammonium ranelate salt;
- and
- b) reacting the dicyclohexylammonium ranelate salt with strontium halide in an anhydrous solvent to obtain strontium ranelate.
Dicyclohexylammonium ranelate salt having dicyclohexylamine and ranelic acid in a ratio of 2:1.
Dependencies are inferred from the claim text.