反应详情

温度

0 °C

A solution of 4-(5-(difluoromethoxy)-2-fluoropyridin-3-yl)-N,N-bis(4-methoxybenzyl)-6-methyl-1,3,5-triazin-2-amine (0.030 g, 0.059 mmol) and 5-amino-2-methoxypyridine (Aldrich) (8.06 μL, 0.065 mmol), in THF (1 mL) was cooled to 0° C. under N2 and treated with lithium bis(trimethylsilyl)amide, 1.0 M solution in tetrahydriofuran (Aldrich) (0.039 mL, 0.235 mmol). The dark red mixture was stirred at 0° C. for 1 h and then partitioned between EtOAc and sat. NH4Cl. The aqueous layer was extracted with EtOAc (2×10 mL). The combined organic layers were washed with water, brine, dried over MgSO4 and concentrated. The crude product was purified by column chromatography (12 g, 10% to 20% EtOAc in hexanes) to give the product as a yellow solid (0.022 g). m/z (ESI, +ve ion) 616.0 (M+H)+. 1H NMR (300 MHz, CDCl3) δ 11.65 (s, 1H); 8.63 (br. s., 1H); 8.26 (s, 1H); 8.17 (br. s., 1H); 7.89 (d, J=8.77 Hz, 1H); 7.11-7.25 (m, 4H); 6.78-6.95 (m, 4H); 6.72 (d, J=8.77 Hz, 1H); 6.11-6.69 (m, 1H); 4.74-4.93 (m, 4H); 3.94 (s, 3H); 3.81 (d, J=8.48 Hz, 6H); 2.59 (s, 3H).

1. custompartitioned between EtOAc and sat. NH4Cl
2. extractionThe aqueous layer was extracted with EtOAc (2×10 mL)
3. washThe combined organic layers were washed with water, brine
4. dry with materialdried over MgSO4
5. concentrationconcentrated
6. customThe crude product was purified by column chromatography (12 g, 10% to 20% EtOAc in hexanes)