反应详情

温度

0 °C

To a 100-mL round-bottomed flask was added 4-(5-chloro-2-fluoropyridin-3-yl)-6-methyl-1,3,5-triazin-2-amine (Example 356, Step 1; 960 mg, 4.01 mmol), N′-(5-amino-2-chloro-3-pyridinyl)-N,N-dimethylsulfamide (1004 mg, 4.01 mmol) and lithium bis(trimethylsilyl)amide (Aldrich; 3352 mg, 20.03 mmol) in tetrahydrofuran (20 mL) at 0° C. After the addition, the reaction mixture was stirred at 0° C. for 20 min. The reaction mixture was diluted with satd NH4Cl (30 mL) and extracted with CH2Cl2 (3×200 mL). The organic extract was washed with satd NaCl (30 mL) and dried over Na2SO4. The solution was filtered and concentrated in vacuo to give the crude material as a yellow solid. The crude product was purified by silica gel chromatography eluting with 5% MeOH/CH2Cl2 to give N′-(5-((3-(4-amino-6-methyl-1,3,5-triazin-2-yl)-5-chloro-2-pyridinyl)amino)-2-chloro-3-pyridinyl)-N,N-dimethylsulfamide (1.29 g, 2.74 mmol, 68.5% yield) as a yellow solid. m/z (ESI, +ve ion) 470.0 (M+H)+. 1H NMR (400 MHz, CDCl3) δ 2.61 (s, 3H) 2.95 (s, 6H) 5.48 (br. s., 2H) 6.80 (s, 1H) 8.31 (d, J=2.74 Hz, 1H) 8.38 (d, J=2.54 Hz, 1H) 8.74 (d, J=2.54 Hz, 1H) 8.85 (d, J=2.74 Hz, 1H) 12.35 (s, 1H).

1. additionAfter the addition
2. extractionextracted with CH2Cl2 (3×200 mL)
3. extractionThe organic extract
4. washwas washed with satd NaCl (30 mL)
5. dry with materialdried over Na2SO4
6. filtrationThe solution was filtered
7. concentrationconcentrated in vacuo
8. customto give the crude material as a yellow solid
9. customThe crude product was purified by silica gel chromatography
10. washeluting with 5% MeOH/CH2Cl2