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:
Jul. 28, 2020
Filed:
Aug. 29, 2017
Applicant:
Drug'on Pharma Switzerland Ag, Liestal, CH;
Inventors:
Thomas Meul, Visp, CH;
Peter Weber, Birsfelden, CH;
Assignee:
DRUG'ON PHARMA SWITZERLAND AG, Liestal, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 227/16 (2006.01); C07C 229/22 (2006.01);
U.S. Cl.
CPC ...
C07C 227/16 (2013.01); C07C 229/22 (2013.01);
Abstract
The present invention relates to a process for preparing 3-(2-hydroxybenzoyloxy)-4-(trimethylammonio)butyrobetaine hydrochloride of formula (I), wherein the process comprises reacting 3-hydroxy-4-(trimethylammonio)butyrobetaine or a salt thereof with a 2-alkoxybenzoyl chloride of formula (III), and where R is selected from benzyl and branched C3-C6 alkyl groups. The present invention further relates to compounds of formula (II) and salts thereof, where R is selected from benzyl and branched C3-C6 alkyl groups, and to a process for preparing same.