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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.:

US 12715852 B1

PDFFull Text
Date of Patent:
Aug. 25, 2026

Filed:

Sep. 16, 2022

Preparation of optically active enantiomers of piperonyl amines by resolution of the diastereomeric salts

Applicant:

Empathbio, Inc., Encinitas, CA (US);

Inventors:

Luigi Anzalone, Hull, MA (US);

Nicholas Morra, Ontario, CA;

Majed Fawaz, Foxborough, MA (US);

Assignee:

EmpathBio, Inc., New York, NY (US);

Attorney:

COOLEY LLP

Primary Examiner:

PO-Chih Chen

Int. Cl.
CPC ...
C07D 317/06 (2006.01);
U.S. Cl.
CPC ...
C07D 317/06 (2013.01);
Abstract

Provided herein is a process for resolving the (S)- and (R)-enantiomers of a compound of Formula (I), wherein L, R, and Rare defined herein.

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