Process for preparing high-purity hydroxyindolylglyoxylamides

US7122674B2 · kind B2 · utility

Assignee

• elbion GmbH · DE

Inventors

• Hans-Joachim Jansch · Radebeul, DE
• Helge Hartenhauer · Dresden, DE
• Hans Stange · Riesa, DE
• Norbert Höfgen · Radeberg, DE
• Jürgen Schäfer · Radebeul, DE

Key dates

• Filing date: Jul 31, 2003
• Grant date: Oct 17, 2006
• Expiry date: Jul 29, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D209/22
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing hydroxyindolylglyoxylamides in high yields and particularly pure form.