反应详情

Acetic anhydride (Aldrich) (0.13 mL, 1.4 mmol) was added slowly at 0° C. to a stirred solution of N5-(3-(4-(bis(4-methoxybenzyl)amino)-6-methyl-1,3,5-triazin-2-yl)-5-((4-(methylsulfonyl)piperazin-1-yl)methyl)pyridin-2-yl)pyridine-2,5-diamine (0.0864 g, 0.122 mmol) and pyridine (0.60 mL, 7.4 mmol) in DMF (2mL). The mixture was stirred at rt for 1.5 h. Water was added and the resulting solid was collected by filtration and washed with water and air-dried to give N-(5-(3-(4-(bis(4-methoxybenzyl)amino)-6-methyl-1,3,5-triazin-2-yl)-5-((4-(methylsulfonyl)piperazin-1-yl)methyl)pyridin-2-ylamino)pyridin-2-yl)acetamide (0.0857 g, 94% yield) as a yellow solid. 1H NMR (400 MHz, CDCl3) δ 11.86 (s, 1H); 8.72 (d, J=2.15 Hz, 1H); 8.51 (d, J=2.54 Hz, 1H); 8.24 (d, J=2.35 Hz, 1H); 8.09 (s, 1H); 7.96 (d, J=2.15 Hz, 1H); 7.91 (s, 1H); 7.20 (dd, J=8.22, 6.26 Hz, 4H); 6.86 (t, J=8.61 Hz, 4H); 4.84 (d, J=8.80 Hz, 4H); 3.80 (d, J=7.43 Hz, 6H); 3.51 (s, 2H); 3.18 (br. s., 4H); 2.71 (s, 3H); 2.60 (s, 3H); 2.55 (t, J=4.21 Hz, 4H); 2.20 (s, 3H). m/z (ESI, +ve ion) 753.0 (M+H)−.

1. filtrationthe resulting solid was collected by filtration
2. washwashed with water
3. customair-dried