Patents by Inventor Claude Bonnamas

Claude Bonnamas has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for preparing 1-alkyl-5-nitroimidazoles
    Patent number: 4925949
    Abstract: Process for preparing 1-alkyl-5-nitroimidazoles of formula: ##STR1## which comprises reacting an alkyl sulphate with an imidazole derivative of general formula: ##STR2## in an organic solvent, and then hydrolyzing or alcoholyzing the product obtained. In the formulae (I) and (II), R denotes hydrogen, unsubstituted or substituted alkyl, aryl or cycloalkyl. In the formula (I), R.sub.1 denotes alkyl. In the formula (II), X denotes a group which can be removed by hydrolysis or alcoholysis.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: May 15, 1990
    Assignee: Rhone-Poulenc Sante
    Inventors: Viviane Massonneau, Michel Mulhauser, Claude Bonnamas, Noel Rouy