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:
Mar. 17, 2026
Filed:
Jul. 31, 2020
Lexicon Pharmaceuticals, Inc., The Woodlands, TX (US);
Bruno Burel, Paris, FR;
Jérome Cezerac, Paris, FR;
Stéphane Dutheil, Paris, FR;
Martial Etienne, Paris, FR;
Richard Flacher, Paris, FR;
Antonio Nobrega, Paris, FR;
LEXICON PHARMACEUTICALS, INC., The Woodlands, TX (US);
Abstract
The present document relates to a process for the preparation of the crystalline form II of sotagliflozin from compound of formula (A), said process being continuously performed and comprising at least the steps of: a) performing in a reaction chamber the reaction of said compound of formula (A) in solution in toluene or in xylene or in mixture thereof, and preferably in toluene, and at least sodium methoxide and methanol, at a temperature below the boiling point of methanol, to form sotagliflozin in mixture with sodium salts; b) conducting in a crystallization chamber the crystallization of sotagliflozin formed in step a), in a non-aqueous solvent medium including at least toluene, or xylene or mixture thereof, and free of sodium salts, at a temperature of crystallization of the form II of sotagliflozin; and c) isolating the crystalline form II of sotagliflozin.