The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2020
Filed:
Nov. 07, 2018
Applicant:
Boehringer Ingelheim Animal Health Usa Inc., Duluth, GA (US);
Inventor:
Chunhua Yang, Belle Mead, NJ (US);
Assignee:
BOEHRINGER INGELHEIM ANIMAL HEALTH USA INC., Duluth, GA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 453/04 (2006.01); C07D 261/04 (2006.01); A01N 43/80 (2006.01); A01N 43/42 (2006.01); A61K 31/42 (2006.01);
U.S. Cl.
CPC ...
A01N 43/80 (2013.01); A01N 43/42 (2013.01); A61K 31/42 (2013.01); C07D 261/04 (2013.01); C07D 453/04 (2013.01);
Abstract
This invention relates to processes for the preparation of antiparasitic isoxazoline compounds enriched in an enantiomer using quinine-based chiral phase transfer catalyst. The invention also relates to novel quinine-based phase transfer catalysts and to a toluene solvent form of the isoxazoline compound of the invention.