Ethanol → 5-iodo-N-(6-methoxypyridin-3-yl)-2-(piperidin-1-yl)pyrimidin-4-amine

Participants

Reaction Conditions

Reaction Steps

A glass microwave reaction vessel was charged with 2-chloro-5-iodo-N-(6-methoxypyridin-3-yl)pyrimidin-4-amine (181 mg, 0.499 mmol), piperidine (0.099 mL, 0.998 mmol) and ethanol (2 mL). The reaction mixture was stirred and heated in a Emrys Optimizer microwave reactor (Personal Chemistry, Biotage AB, Inc., Upssala, Sweden) at 140° C. for 20 min. The reaction mixture was diluted with water (20 mL) and extracted with EtOAc (2×30 mL). The organic extract was washed with saturated NaCl (10 mL) and dried over Na2SO4. The solution was filtered and concentrated in vacuo to give the crude material as orange oil. The crude product was purified by silica gel chromatography eluting with 40% EtOAc/hexanes to give 5-iodo-N-(6-methoxypyridin-3-yl)-2-(piperidin-1-yl)pyrimidin-4-amine (189 mg, 0.460 mmol, 92% yield). 1H NMR (300 MHz, CDCl3) δ 8.24 (s, 1H); 8.17 (s, 1H); 7.79 (dd, J=8.84, 2.56 Hz, 1H); 6.75 (d, J=8.77 Hz, 1H); 6.63 (s, 1H); 3.94 (s, 3H); 3.57-3.73 (m, 4H); 1.47-1.69 (m, J=4.68 Hz, 6H). m/z (ESI, +ve ion) 412.0 (M+H)+.

Provenance & Evidence