Patents by Inventor Christa Schott

Christa Schott 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).

  • 2-(2-aminobenzyl or 2-nitrobenzyl)-1,2,3,4-tetrahydroisoquinoline derivatives
    Patent number: 4925943
    Abstract: Derivatives of 2-(2-aminobenzyl or 2-nitrobenzyl)-1,2,3,4-tetrahydroisoquinoline of the formula ##STR1## in which each of substituents R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 or R.sub.8 may represent either a hydrogen atom, a straight or branched chain alkyl group, a straight or branched chain alkoxy group, a hydroxy group or corresponding esters, a phenoxy group, a benzyloxy group, a methylenedioxy bridge (--O--CH.sub.2 --O--) when this substituent is connected with an adjacent carbon, a halogen, a nitro group, an amine function corresponding to primary or secondary or tertiary amine, or quarternary ammonium;each of substituents R.sub.9 or R.sub.10 may represent either a hydrogen atom, a straight or branched chain alkyl group, an arylalkyl group, an amine function corresponding to primary or secondary or tertiary amine or quarternary ammonium, or may each be oxygen atoms;each of substituents R.sub.11 or R.sub.
    Type: Grant
    Filed: January 5, 1988
    Date of Patent: May 15, 1990
    Inventors: Isabelle Kanmacher, Jean-Francois Stambach, Louis Jung, Christa Schott, Jean-Claude Stoclet, Christiane Heitz