Patent · US Active

Crystal forms and production methods thereof

US11370753B2 · kind B2 · utility

5Cited by

61References

12Claims

0Family size

Assignee

Sunovion Pharmaceuticals Inc. · US

Inventors

John R. Snoonian · Bolton, US
Harold Scott Wilkinson · Westborough, US
Haitao Zhang · Ithaca, US

Key dates

Filing date	Aug 17, 2020
Grant date	Jun 28, 2022
Priority date	—
Expiry date	Aug 17, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07B2200/13
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The various aspects present inventions provide various crystalline forms of (S)-(−)-amisulpride, (R)-(+)-amisulpride, and solvates thereof and methods of making same. In various aspects, the inventions also provide methods of resolving racemic amisulpride.

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