Process for the preparation of pyrazolopyrimidinones

Details Process for the preparation of pyrazolopyrimidinones Process for the preparation of pyrazolopyrimidinones

2006-02-28

2006-02-28

McKenzie, Thomas C. (Department: 1624)

Organic compounds -- part of the class 532-570 series

Organic compounds

Pteroyl per se or having -c-, wherein x is chalcogen, bonded...

C544S360000, C544S365000, C544S383000

Reexamination Certificate

active

07005520

ABSTRACT:
There is provided a process for the production a compound of general formula I:wherein A, R1, R2, R3and R4have meanings given in the description, which process comprises the reaction of a compound of formula II,wherein Rxis a group substitutable by an aminopyrazole, with a compound of general formula III

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