Ammonia → 3-[1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]-6-isopropyl-1,2,4-triazine-5-amine

Participants

Reaction Steps

900 mg (5.138 mmol) of 3-[1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]-6-isopropyl-1,2,4-triazin-5-ol were admixed with 12 ml of phosphoryl chloride and stirred overnight at RT. The reaction mixture was diluted with 50 ml of dry acetonitrile and, with ice-cooling, stirred into 173 ml of concentrated aqueous ammonia solution (25% strength). The reaction mixture was stirred for 2 h at RT and for 6 h at 50° C. After cooling, concentration on a rotary evaporator was carried out.

Provenance & Evidence