Patent · US Active

Preparation method for tricyclic compounds

US10981888B2 · kind B2 · utility

0Cited by

2References

18Claims

0Family size

Assignee

BAYER CROPSCIENCE AKTIENGESELLSCHAFT · DE

Inventors

Florian ERVER · Wiesbaden, DE
Frank MEMMEL · Guntersblum, DE
Alexander ARLT · Leverkusen, DE
Werner Hallenbach · Nordhorn, DE
Tobias Harschneck · Goldkronach, DE
Christoph SCHOTES · Düsseldorf, DE
Robert Velten · Langenfeld, DE

Key dates

Filing date	Dec 4, 2017
Grant date	Apr 20, 2021
Priority date	—
Expiry date	Dec 4, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D231/12
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Methods for preparing compounds of formula (I) Wherein R1 to R5 and A1 to A4 are as defined in the application.

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