Patent · US Active

Formoterol tartrate process and polymorph

US7342132B2 · kind B2 · utility

8Cited by
5References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 4, 2006
Grant dateMar 11, 2008
Priority date—
Expiry dateAug 4, 2026

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07B2200/13
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

A method of preparation of a highly pure salt of R,R-formoterol L-tartrate is disclosed. The process provides the most thermodynamically stable polymorph by recrystallization of a novel polymorph.

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