Desformoterol and process for its preparation

Details Desformoterol and process for its preparation Desformoterol and process for its preparation

C - Chemistry, Metallurgy

07

C

C07C 217/60 (2006.01) A61K 31/137 (2006.01) C07C 213/02 (2006.01) C07C 213/04 (2006.01) C07C 217/70 (2006.01)

Patent

CA 2335154

The (R,R)-, (S,S)-, (R,S)-, (R,S)- isomers of 3- amino- 4- hydroxy-.alpha.- [[[2-(4- methoxyphenyl)-1-methylethyl]amino]methyl] -benzenemethanol (D) are disclosed, as well as an efficient method for their stereoselective synthesis. A method and composition are also disclosed utilizing desformoterol (D) as a bronchodilator, having high selectivity for .beta.2 receptors.

L'invention concerne les isomères (R, R) -, (S, S) -, (R, S) -, (R, S)- de 3 -amino- 4 -hydroxy- alpha [[[2- (4- méthoxyphényl)-1-méthyléthyl]amino]méthyl]- benzèneméthanol (D), ainsi qu'un procédé efficace de synthèse stéréosélective de ceux-ci. L'invention concerne également un procédé et une composition utilisant le desformotérol (D) comme bronchodilatateur, qui présente une sélectivité élevée pour les récepteurs beta 2.

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