Sodium hydride → 2-(3-(5-chloro-2-methoxyphenyl)-4-(pyrazolo[1,5-a]pyrimidine-3-carboxamido)-1H-pyrazol-1-yl)-2-fluoroacetic acid

Participants

Reaction Steps

To N-(3-(5-chloro-2-methoxyphenyl)-1H-pyrazol-4-yl)pyrazolo pyrimidine-3-carboxamide (37.1 mg, 0.10 mmol) in 1.5 DMF was added sodium hydride (10 mg, 0.40 mmol) and the mixture stirred for 5 min at which time ethyl bromofluoroacetate (37 mg, 0.20 mmol) was added. The mixture was stirred overnight, then purified by reverse phase HPLC and lyophilized to afford 13.3 mg (30%) of 2-(3-(5-chloro-2-methoxyphenyl)-4-(pyrazolo[1,5-a]pyrimidine-3-carboxamido)-1H-pyrazol-1-yl)-2-fluoroacetic acid as a colorless solid. LCMS (ESI) m+H=445.1. 1H NMR (400 MHz, DMSO) δ 9.71 (s, 1H), 9.33 (d, J=7.0 Hz, 1H), 8.76-8.71 (m, 1H), 8.66 (d, J=8.3 Hz, 1H), 8.38 (s, 1H), 7.58-7.20 (m, 5H), 5.98 (d, J=56.5 Hz, 1H), 3.84 (s, 3H).

Provenance & Evidence