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 295/22 (2006.01) A61K 31/495 (2006.01) A61P 15/00 (2006.01) C07D 213/80 (2006.01) C07D 213/85 (2006.01) C07D 295/26 (2006.01) C07D 401/12 (2006.01) C07D 487/04 (2006.01)

Patent

CA 2411961

There is provided a process for the production of a compound of general formula (I) wherein A, A1, R2, R3 and R4 have meansings given in the description, which process comprises the reaction of a compound of formula (II), wherein Rx is a group substitutable by an aminopyrazole, with a compound of general formula (III).

L'invention concerne un procédé de préparation d'un composé représenté par la formule générale (I) dans laquelle A, A?1¿, R?2¿, R?3¿ et R?4¿ sont comme définis dans le descriptif. Ledit procédé consiste à faire réagir un composé représenté par la formule (II), dans laquelle R?x¿ est un groupe pouvant être substitué par un aminopyrazole, avec un composé représenté par la formule générale (III).

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