Patent · US Active

Process for preparing salicyloyl-L-carnitine hydrochloride

US10723691B2 · kind B2 · utility

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1References

20Claims

0Family size

Assignee

DRUG'ON PHARMA SWITZERLAND AG · CH

Inventors

Thomas Meul · Visp, CH
Peter Weber · Kandern, DE

Key dates

Filing date	Aug 29, 2017
Grant date	Jul 28, 2020
Priority date	—
Expiry date	Aug 29, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C229/22
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

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.

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