Patent · US Active

Process for preparing cis-alkoxy-substituted spirocyclic phenylacetylamino acid esters and cis-alkoxy-substituted spirocyclic 1H-pyrrolidine-2,4-dione derivatives

US9840459B2 · kind B2 · utility

0Cited by

2References

5Claims

0Family size

Assignee

Bayer Intellectual Property GmbH · DE

Inventors

Taraneh Farida · Pulheim, DE
Berndt Maiwald · Kirchberg, DE
Martin Littmann · Middletown, US
Winfried Etzel · Leichlingen, DE
Rafael Warsitz · Essen, DE
Nicolas Henck · Bonn, DE
Michael ESSER · Leverkusen, DE

Key dates

Filing date	May 23, 2016
Grant date	Dec 12, 2017
Priority date	—
Expiry date	May 23, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2601/14
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a novel process for preparing cis-alkoxy-substituted spirocyclic phenylacetylamino acid esters and cis-alkoxy-substituted spirocyclic 1H-pyrrolidine-2,4-dione derivatives, and also to novel intermediates and starting materials which are produced and/or used in the process according to the invention.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.