Amino acid esters, pharmaceuticals containing them, and the use thereof in learning disorders

US5043346A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Franz Hock · Dieburg, DE
• Josef Scholtholt · Hanau, DE
• Hansjorg Urbach · Kronberg, DE
• Rainer Henning · Tokyo, JP
• Ulrich Lerch
• Wolf-Ulrich Nickel · Bad Soden am Taunus, DE
• Wolfgang Ruger · Alfeld, DE

Key dates

• Filing date: Apr 20, 1989
• Grant date: Aug 27, 1991
• Expiry date: Apr 20, 2009

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K38/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to amino acid esters of the formula I ##STR1## in which n is 2 and R, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the meaning indicated in the description, to a process and intermediates for the preparation thereof, to agents containing them, and the use thereof.