反应详情

A solution of 2-(pyridine-2-yl)-4-methylpyrimidine-5-carboxylic acid (0.11 g) and HATU (0.19 g) in dry DMF (7 mL) is treated with DIPEA (0.09 mL) and stirred at rt under N2 for 30 min. 1-Amino-4-fluoroindole (0.112 g) is added and the mixture is stirred at rt for 24 h. The mixture is concentrated in vacuo. The residue is dissolved in EtOAc, washed with water and brine and dried (MgSO4), filtered, and concentration in vacuo. The residue is purified by silica gel chromatography eluting with 75% EtOAc to afford 2-(pyridin-2-yl)-4-methylpyrimidine-5-carboxylic acid-(4-fluoroindol-1-yl)amide (0.085 gms, 50%). MS: 348 (M+H); 1H NMR (300 MHz, DMSO-d6): δ 2.82 (s, 3H), 6.65 (d, 1H), 6.93-6.97 (q, 1H), 7.19-7.26 (m, 1H), 7.35-7.38 (d, 1H), 7.62 (d, 1H), 7.74-7.78 (m, 1H), 8.20-8.25 (t, 1H), 8.58-8.61 (d, 1H), 8.85-8.86 (d, 1H), 9.33 (s, 1H), 12.15 (s, 1H).

1. stirringthe mixture is stirred at rt for 24 h
2. concentrationThe mixture is concentrated in vacuo
3. dissolutionThe residue is dissolved in EtOAc
4. washwashed with water and brine
5. dry with materialdried (MgSO4)
6. filtrationfiltered
7. concentrationconcentration in vacuo
8. customThe residue is purified by silica gel chromatography
9. washeluting with 75% EtOAc