Novel process for the preparation of pyrazolopyrimidinones

Details Novel process for the preparation of pyrazolopyrimidinones Novel process for the preparation of pyrazolopyrimidinones

C - Chemistry, Metallurgy

07

D

C07D 487/04 (2006.01) C07D 213/71 (2006.01) C07D 295/22 (2006.01) C07D 295/26 (2006.01)

Patent

CA 2411957

There is provided a process for the production of a compound of general formula (I), wherein A, R1, R2, R3 and R4 have meanings given in the description, which process comprises the dehydrogenation of a compound of general formula (II).

Cette invention concerne un procédé de fabrication d'un composé représenté par la formule générale (I), dans laquelle A, R?1¿, R?2¿, R?3¿ et R?4¿ ont la signification donnée dans le descriptif. Ce procédé passe par déshydrogénation d'un composé représenté par la formule générale (II).

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