PROCESS FOR MANUFACTURING 3(R)-(2-HYDROXY-2,2-DITHIEN-2-YLACETOXY)-1-(3-PHENOXYPROPYL)-1-AZONIABICYCLO[2.2.2]OCTANE BROMIDE
First Claim
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.
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Abstract
This present disclosure relates to a process for manufacturing 3(R)-(2-hydroxy-2,2-dithien-2-ylacetoxy)-1-(3-phenoxypropyl)-1-azoniabicyclo[2.2.2]octane bromide by 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.
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Citations
12 Claims
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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 Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- C. to 210°
Specification