Process for preparing antihelmintic 4-amino-quinoline-3-carboxamide derivatives

US11505544B2 · kind B2 · utility

Assignee

• Bayer Animal Health GmbH · DE

Inventors

• Florian ERVER · Wiesbaden, DE
• Frank MEMMEL · Guntersblum, DE
• Thomas Himmler · Odenthal, DE
• Andreas Karl STEIB · Wuppertal, DE
• Marc Nowakowski · Wuppertal, DE

Key dates

• Filing date: Dec 14, 2018
• Grant date: Nov 22, 2022
• Expiry date: Dec 14, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D215/56
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a new process for preparing quinoline compounds of the general formula (II): in which Q, A, R4, R3 and R3′, are as defined herein, as well as to the intermediate compounds of said new process.