Piperazine → HCID 66744445, compound

Participants

Reaction Conditions

Reaction Steps

Tert-butyl N-[3-(benzothiophen-2-yl)-5-bromo-pyrazin-2-yl]-N-tert-butoxycarbonyl-carbamate (100 mg, 0.1975 mmol) was dissolved in DMF (781.2 μL) and treated with piperazine (170.1 mg, 1.975 mmol) and the reaction mixture heated at 100° C. for 30 minutes. The reaction was allowed to cool to ambient temperature and diluted with EtOAc/water and the layers separated. The organic layer was washed with water (3×), dried (MgSO4) and concentrated in vacuo. The material was used crude in the next step (92 mg, 91% Yield). 1H NMR (DMSO) d 1.23 (18H, s), 2.98 (4H, m), 3.59 (2H, m), 3.63 (2H, m), 7.29 (2H, m), 7.74 (3H, m), 7.89 (1H, s) ppm; MS (ES+) 511.98

Provenance & Evidence