Sodium hydride → 2-(4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)-3-pyridyl cyanide

Participants

Reaction Conditions

Reaction Steps

Sodium hydride (60% dispersion in mineral oil, 3.825 mmol, 153 mg) was added to a suspension of 4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidine (1.0 g, 3.825 mmol) in DMF (5 mL). After 10 min, 2-chloro-3-cyanopyridine (531 mg) was added and the reaction was heated at 60° C. for 16 h. The resulting dark mixture was poured into ice-water (50 mL) and the solid collected by filtration to afford 2-(4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)-3-pyridyl cyanide as a brown solid (1.1 g, 79%); 1H NMR (DMSO-d6, 400 MHz) δ 7.82 (1H, m), 8.29 (1H, s), 8.64 (1H, m) and 8.93 (1H, m); RP-HPLC (Pecosphere, C18, 3 μm, 33×4.6 mm column, 0% to 100% acetonitrile in 50 mM ammonium acetate, buffered to pH 4.5, at 3.5 mL/min) Rt 2.16 min.

Provenance & Evidence