Nitrogen → HCID 16662430, compound

Participants

Reaction Steps

A solution of 3-cyclobutyl-1-iodoimidazo[1,5-a]pyrazin-8-amine (50 mg, 0.159 mmol) in N,N-dimethylformamide (6 mL) and evacuated and charged with N2 three times, then treated with triethylamine (0.044 mL, 0.318 mmol), phenylacetylene (0.175 mL, 1.59 mmol), and copper (I) iodide (3.0 mg, 0.0159 mmol). The mixture re-evacuated and charged with N2 twice more, then charged with tetrakis(triphenylphoshine)palladium (0) (20.2 mg, 0.0175 mmol) and evacuated and charged with N2 a final two times. The reaction mixture was stirred at rt for 16 h, then concentrated in vacuo, dissolved in MeOH/CH3CN (1:1)(4 mL) and was filtered through a 0.45 fritted μM autovial prior to purification via mass directed preparative HPLC that afforded 13 mg of the title compound. 1H NMR (DMSO-d6, 400 MHz) δ 1.87-1.99 (m, 1H), 2.01-2.15 (m, 1H), 2.32-2.47 (m, 4H), 3.87-3.99 (m, 1H), 6.66 (brs, 2H), 7.08 (brs, 1H), 7.40-7.51 (m, 4H), 7.59-7.67 (m, 2H); MS (ES+): m/z 289.13 [MH+].

Provenance & Evidence