Potassium Carbonate → 2-(3-Aminopyrazolo[3,4-b]pyridin-1-yl)-1-[4-(4-chloro-2-fluoro-5-methoxyphenyl)-2-methylpiperazin-1-yl]ethanone

Participants

Reaction Conditions

Reaction Steps

1H-Pyrazolo[3,4-b]pyridin-3-ylamine (67 mg), 2-Chloro-1-[4-(4-chloro-2-fluoro-5-methoxy-phenyl)-2-methyl-piperazin-1-yl]-ethanone (167 mg) and K2CO3 (414 mg) were combined in DMF (1 mL) and heated at 80° C. for 2 hr, then cooled to room temperature. The resultant mixture was purified by preparative HPLC to provide 2-(3-Aminopyrazolo[3,4-b]pyridin-1-yl)-1-[4-(4-chloro-2-fluoro-5-methoxyphenyl)-2-methylpiperazin-1-yl]ethanone as a yellow powder. LCMS (ES) M+H 433.5, Rf 2.06 min (Agilent Zorbax SB-C18, 2.1×50 mm, 5μ, 35° C., 1 ml/min flow rate, a 2.5 min gradient of 20% to 100% B with a 1.1 min wash at 100% B; A=0.1% formic acid/5% acetonitrile/94.9% water, B=0.1% formic acid/5% water/94.9% acetonitrile).

Provenance & Evidence