Patents by Inventor Alain Hercouet

Alain Hercouet 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 the synthesis of derivatives of the benzofuran, chromene and isochromene type
    Patent number: 4230624
    Abstract: The invention relates to a process for the production of therapeutic compounds of the benzofuran, chromene and isochromene type of the general formula; ##STR1## in which formula, ##STR2## R.sub.1 and R.sub.3 =H, lower alkyl, aralkyl or cycloalkyl R.sub.2 =H or an organic radicaland whenD= ##STR3## R.sub.1 and R.sub.3 may represent an organic radical. The process comprising the cyclization in the liquid phase and in the presence of a base a compound of the formula; ##STR4## in which formula; R'=an alkyl, aryl or aralkyl radical andX.sup.- =an anion.
    Type: Grant
    Filed: August 31, 1978
    Date of Patent: October 28, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche
    Inventors: Maurice Le Corre, Alain Hercouet, Beatrice Begasse