Substituted pyridines

Details Substituted pyridines Substituted pyridines

C - Chemistry, Metallurgy

07

D

C07D 213/75 (2006.01) C07D 213/76 (2006.01) C07D 401/12 (2006.01) C07D 401/14 (2006.01) C07D 413/00 (2006.01) C07D 417/00 (2006.01) C07F 9/58 (2006.01)

Patent

CA 2220808

The present invention relates to certain compounds of the formula (I), (see fig. I) , which are useful in the synthesis of certain .beta.-adrenergic receptor agonists. The invention also relates to a process for synthesizing the compounds of formula (I) and to compounds of the formula (II), (see fig. II) , wherein R1, R2 and R4 are defined herein, which are useful in the synthesis of the compounds of formula (I). The invention also relates to a process for synthesizing a compound of formula (II). The invention further relates to processes for synthesizing compounds of formula (Z*), (see fig. III), R1, R2 and Y2* are defined herein.

L'invention concerne certains composés de la formule (I), (voir la fig. I), qui sont utiles dans la synthèse de certains agonistes de récepteurs bêta-adrénergiques. Elle a également trait à un processus de synthèse des composés de la formule (I) et aux composés de la formule (II), (voir la fig. II), dans laquelle R1, R2 et R4 sont ici définis, qui sont utiles dans la synthèse des composés de la formule (I). L'invention concerne enfin un processus de synthèse d'un composé de la formule (II). Elle fait en outre état de processus de synthèse des composés de la formule (Z*), (voir la fig. III), dans laquelle R1, R2 et Y2* sont ici définis.

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