New process for the preparation of pirazolopirimidinonas pcs10383afae Ref.

摘要

Provides a procedure for the production of a compound of General formula (see formula (i): in which a, R1, R2, R3 and R4 have the meanings given in the description,Process comprising reacting a compound of formula II: (see formula).In the one group that RX is replaceable by a aminopirazol, a compound of General formula (see formula (iii).