Hydrochloric Acid → 6-(1-(6-(1,4-diazepan-1-yl)pyridin-2-yl)-1H-pyrazolo[4,3-c]pyridin-6-yl)pyrazin-2-amine

Participants

Reaction Steps

To a mixture of tert-butyl 4-[6-[6-[6-[(4-methoxyphenyl)methylamino]pyrazin-2-yl]pyrazolo[4,3-c]pyridin-1-yl]-2-pyridyl]-1,4-diazepane-1-carboxylate (0.4789 mmol; 291 mg) in Dichloromethane (5 mL) was added Hydrogen Chloride, 4.0 M in 1,4-Dioxane (5 mL), and TRIFLIC ACID (4.789 mmol; 733.3 mg; 0.4293 mL). The reaction mixture was stirred at room temperature for 3 days. The mixture was concentrated and the residue was purified by reverse phase HPLC to afford 247 as an off-white solid (50.3 mg, 27%). 1H NMR (400 MHz, DMSO) δ 9.45-9.41 (s, 1H), 9.26-9.22 (s, 1H), 8.76-8.73 (s, 1H), 8.64-8.58 (s, 1H), 7.99-7.96 (s, 1H), 7.73-7.67 (t, J=8.1 Hz, 1H), 7.16-7.12 (d, J=7.7 Hz, 1H), 6.63-6.58 (d, J=8.5 Hz, 1H), 6.33-6.25 (s, 2H), 3.89-3.82 (dd, J=11.0, 5.2 Hz, 4H), 3.03-2.98 (m, 2H), 2.73-2.66 (m, 2H), 1.91-1.84 (dd, J=11.5, 5.8 Hz, 2H); MS (ESI) m/z: 388.2 [M+H]+

Provenance & Evidence