×

Process for manufacturing 3(R)-(2-hydroxy-2,2-dithien-2-ylacetoxy)-1-(3-phenoxypropyl)-1-azoniabicyclo[2.2.2]octane bromide

  • US 8,044,205 B2
  • Filed: 07/16/2007
  • Issued: 10/25/2011
  • Est. Priority Date: 07/21/2006
  • Status: Active Grant
First Claim
Patent Images

1. A process for manufacturing 3(R)-(2-hydroxy-2,2-dithien-2-ylacetoxy)-1-(3-phenoxypropyl)-1-azoniabicyclo[2.2.2]octane bromide comprising reacting 2-hydroxy-2,2-dithien-2-ylacetic acid 1-azabicyclo[2.2.2]oct-3(R)yl ester and 3-phenoxypropyl bromide, wherein the reaction takes place in a solvent or mixtures of solvents having a boiling point from 50°

  • C. to 210°

    C., and chosen from ketones and cyclic ethers.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×