7-Benzylamino-3-bromopyrazolo[1,5-a]pyrimidine-6-carboxylic acid → 7-Benzylamino-3-bromo-6-(6-fluoro-2h-spiro[benzofuran-3,4'-piperidine]-1'-ylcarbonyl)pyrazolo[1,5-a]pyrimidine

Participants

Reaction Steps

In the same manner as in Example 21, step 5 and using 7-benzylamino-3-bromopyrazolo[1,5-a]pyrimidine-6-carboxylic acid (0.193 g, 0.556 mmol) obtained in Example 22, step 3 and 6-fluoro-2H-spiro[benzofuran-3,4′-piperidine]hydrochloride (0.150 g, 0.616 mmol) obtained in Reference Example 4, the title compound (0.232 g, 77%) was obtained.

Provenance & Evidence