反应详情

Compound 2 (0.1 g, 0.5 mmol, 1 eq), 4-methylthiazol-2-amine (111 mg, 0.972 mmol, 2.10 eq), 2-(1H-7-Azabenzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (371 g, 0.972 mmol, 2.10 eq), and DIEA (170 μL, 0.972 mmol, 2.10 eq) were dissolved in CH2Cl2 (5 mL) and DMF (1 mL) and stirred rt for 48 h. The reaction was diluted with CH2Cl2 and washed with water (1×). The organics were dried (MgSO4), filtered and concentrated in vacuo. Purification by flash chromatography on silica gel afforded 38 mg (26%) of the title compound as a white solid: 1H NMR (400 MHz, CDCl3) δ 8.56 (d, J=2.1 Hz, 1H), 8.49 (d, J=4.6 Hz, 1H), 7.94-7.90 (m, 1H), 7.76 (t, J=2.0 Hz, 1H), 7.69 (ddd, J=8.5, 2.7, 1.1 Hz, 1H), 7.62-7.57 (m, 2H), 7.38 (dd, J=8.0, 2.1 Hz, 1H), 6.81 (s, 1H), 2.29 (s, 3H); [M+1]+: 312.1.

1. washwashed with water (1×)
2. dry with materialThe organics were dried (MgSO4)
3. filtrationfiltered
4. concentrationconcentrated in vacuo
5. customPurification by flash chromatography on silica gel