Substituted DTPA monoamides of the central carboxylic acid group and their metal complexes

US5676923A · kind A · utility

Assignee

• SCHERING CORPORATION · US

Inventors

• Johannes Platzek · Berlin, DE
• Ulrich Niedballa · Berlin, DE
• Peter Mareski · Berlin, DE
• Bernd Raduchel · Berlin, DE
• Hanns-Joachim Weinmann · Berlin, DE
• Andreas Muhler · Oderberg, DE
• Bernd Misselwitz · Berlin, DE

Key dates

• Filing date: Jun 7, 1995
• Grant date: Oct 14, 1997
• Expiry date: Jun 7, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D213/55
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Diethylenetriaminepentaacetic acid monoamide derivatives, their complexes and complex salts, containing an element of atomic numbers 21-29, 31, 32, 39, 42-44, 49 or 57-83, pharmaceutical agents containing these compounds, their use as contrast media and process for their production.