Process for the preparation of betamimetic benzoxazinone...

Details Process for the preparation of betamimetic benzoxazinone... Process for the preparation of betamimetic benzoxazinone...

C - Chemistry, Metallurgy

07

D

C07D 265/18 (2006.01)

Patent

CA 2627724

The invention relates to a process for the manufacturing of organic compounds useful for treatment and prevention of respiratory diseases of general Formula (1) and salts thereof, wherein, R1 and R2 each independently mean H, halogen or C1-4-alkyl or R1 and R2 are together have the meaning of C1-6-alkylene; and R3 denotes H, Halogen, OH, C1-4-alkyl or O-C1-4-alkyl.

La présente invention concerne un procédé de fabrication de composés organiques et de leurs sels utilisables pour le traitement et la prévention de maladies respiratoires. Les composés ont la formule générale (1) dans laquelle R1 et R2 signifient chacun indépendamment H, un halogène ou un alkyle en C1-4 ou bien R1 et R2 ensemble signifient un alkylène en C1-6 ; et R3 signifie H, un halogène, OH, un alkyle en C1-4 ou un O-alkyle en C1-4.

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