Method for preparing halogenated imidazopyridine derivatives

US11072609B2 · kind B2 · utility

Assignees

• BAYER HEALTHCARE LLC · DE
• BAYER CROPSCIENCE AKTIENGESELLSCHAFT · DE

Inventors

• Marc Mosrin · Monheim, DE
• Ruediger Fischer · Pulheim, DE
• Dominik HAGER · Monheim, DE
• Laura HOFFMEISTER · Dressendorf, DE
• Nina Kausch-Busies · Bensberg, DE
• David Wilcke · Mülheim an der Ruhr, DE
• Matthieu WILLOT · Goldkronach, DE
• Kerstin Ilg · Cologne, DE

Key dates

• Filing date: Feb 5, 2018
• Grant date: Jul 27, 2021
• Expiry date: Jun 11, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D471/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a method for preparing halogenated imidazopyridine derivatives of the formula (II) proceeding from compounds of the formula (I) via intermediates of the formula (IVa) or (IVb) in which the radicals The invention further relates to such halogenated imidazopyridine derivatives, and also intermediates and the reaction products of compounds of the formula (II) to give compounds of the formula (III) in which the specified structural elements have the definitions stated.