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US 5,672,724 AGranted
Processes for preparing ranitidine
AssigneeHoechst Marion Roussel, Inc.
InventorRobert M. Strom
Life of this patent
Estimating the term…
Abstract
The present invention relates to a novel method for preparing ranitidine and pharmaceutically acceptable salts thereof.
Claims6
A process for preparing ranitidine, comprising:
- reacting 2-nitromethylene-thiazolidine with methylamine to give a reaction mixture and then reacting the reaction mixture with an appropriate 5-(dimethylamino)methyl!-furan derivative.
Dependencies are inferred from the claim text.