Reacción #68958

Ecuación de reacción

Sodium methoxide

5-(8-bromoisoquinolin-3-ylamino)pyrazine-2-carbonitrile

→

title compound

Rendimiento 6.0%

5-(8-methoxyisoquinolin-3-ylamino)pyrazine-2-carbonitrile

Rendimiento 6.0%

Disolventes

DMF

Condiciones de reacción

Tratamiento posterior

1. 1
   OtroThe three reaction mixtures
2. 2
   OtroThe combined reaction mixtures
3. 3
   Otrowere partitioned between ethyl acetate and water
4. 4
   Extracciónthe aqueous layer re-extracted with more ethyl acetate
5. 5
   LavadoThe combined organic phases were washed with brine
6. 6
   Secadodried (Na2SO4)
7. 7
   Concentraciónconcentrated in vacuo
8. 8
   OtroPurification by preparative HPLC

Procedimiento

Sodium methoxide (55 mg, 0.10 mmol) was added to a pre-stirred mixture of 5-(8-bromoisoquinolin-3-ylamino)pyrazine-2-carbonitrile (33 mg, 0.10 mmol) and copper iodide (19 mg, 0.10 mmol) in DMF in triplicate. The three reaction mixtures were heated at 140° C. for 30 minutes, 110° C. for 18 hours, and 120° C. for 10 minutes, respectively. The combined reaction mixtures were partitioned between ethyl acetate and water and the aqueous layer re-extracted with more ethyl acetate. The combined organic phases were washed with brine, dried (Na2SO4), and concentrated in vacuo. Purification by preparative HPLC gave the title compound (1.7 mg, 0.006 mmol, 2%). 1H NMR (DMSO, 400 MHz) δ 9.33 (s, 1H), 8.81 (d, 1H, J=1.3 Hz), 8.71 (d, 1H, J=1.3 Hz), 8.43 (s, 1H), 7.64 (t, 1H, J=8.1 Hz), 7.43 (d, 1H, J=8.3 Hz), 6.97 (d, 1H, J=7.6 Hz), 4.01 (s, 3H). LCMS (2) Rt=2.87 min, m/z (ESI+) 278 (MH+).

Fuente