Patents by Inventor Nejib M. Nasraoui

Nejib M. Nasraoui 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).

Derivatives of 19-nor progesterone; process for producing them and the pharmaceutical compositions incorporating them

Patent number: 5223492

Abstract: This invention relates to the field of chemistry and more precisely to the field of medicinal Chemistry.It has specifically as subject matter the compounds of general formula I ##STR1## wherein R is a hydrogen, a lower alkyl radical a methoxymethyl, a tetrahydropyranyl or the acyl residue of an organic carboxylic.

Type: Grant

Filed: August 26, 1991

Date of Patent: June 29, 1993

Inventors: Nejib M. Nasraoui, Alain Piasco

Derivatives of 19-nor progesterone; process for producing them and the pharmaceutical compositions incorporating them