反应详情

A mixture of isopropenylboronic acid pinacol ester (0.119 mL, 0.633 mmol, Aldrich, St. Louis, Mo.), potassium carbonate (0.175 g, 1.267 mmol), (Amphos)2PdCl2 (0.022 g, 0.032 mmol) and 4-(5-chloro-2-(6-methoxypyridin-3-ylamino)pyridin-3-yl)-N,N-bis(4-methoxybenzyl)-6-methyl-1,3,5-triazin-2-amine (Example 155, 0.185 g, 0.317 mmol) in 4:1 dioxane/water (2.5 mL) was heated in a sealed tube for 24 h. The reaction was cooled and partitioned between water and DCM. The aqueous layer was extracted with DCM (3×), and the combined organic layers were dried over anhydrous sodium sulfate, filtered, and concentrated in vacuo. The crude material was purified by silica gel chromatography (25 g column) using 0-30% EtOAc/hexane. The product-containing fractions were concentrated to give N,N-bis(4-methoxybenzyl)-4-(2-(6-methoxypyridin-3-ylamino)-5-(prop-1-en-2-yl)pyridin-3-yl)-6-methyl-1,3,5-triazin-2-amine (0.171 g, 0.290 mmol, 92% yield) as an orange solid. m/z (ESI, +ve ion) 590 (M+H)+. 1H NMR (400 MHz, CDCl3) δ 11.71 (br. s., 1H); 8.94 (s, 1H); 8.44 (d, J=2.5 Hz, 1H); 8.27 (d, J=2.3 Hz, 1H); 7.91 (br. s., 1H); 7.22 range (m, 4H); 6.86 range (m, 4H); 6.73 (d, J=9.0 Hz, 1H); 5.33 (s, 1H); 5.01 (s, 1H); 4.89 (s, 2H); 4.82 (s, 2H); 3.94 (s, 3H); 3.82 (s, 3H); 3.79 (s, 3H); 2.59 (s, 3H); 2.13 (s, 3H).

1. temperaturewas heated in a sealed tube for 24 h
2. temperatureThe reaction was cooled
3. custompartitioned between water and DCM
4. extractionThe aqueous layer was extracted with DCM (3×)
5. dry with materialthe combined organic layers were dried over anhydrous sodium sulfate
6. filtrationfiltered
7. concentrationconcentrated in vacuo
8. customThe crude material was purified by silica gel chromatography (25 g column)
9. concentrationThe product-containing fractions were concentrated