反应详情

温度

160 °C

N-(2-{[tert-Butyl(dimethyl)silyl]oxy}ethyl)-3-chloro-2,4-difluoro-N-methylbenzamide (100 mg, 0.275 mmol) was added to 3-hydroxy-N-(1-methyl-1H-pyrazol-3-yl)-5-{(1S)-1-methyl-2-[(triisopropylsilyl)oxy]ethoxy}benzamide (123 mg, 0.275 mmol) and potassium carbonate (76 mg, 0.551 mmol) in dry dimethylacetamide. The mixture was heated in a Smith Creator microwave at 160° C. for 2 hours. Water (25 mL) was added to the reaction mixture and extracted with ethyl acetate (3×30 mL). The combined organic extracts were dried (MgSO4), filtered and evaporated. Purification by column chromatography on silica, eluting with 50-100% ethyl acetate in hexanes, gave the title compound as a pale yellow oil (500 mg). 1H NMR δ (CDCl3): 1.29 (d, 3H), 2.09 (t, 1H), 3.23 (s, 3H), 3.59 (t, 2H), 3.71-3.76 (m, 2H), 3.79 (s, 3H), 4.54 (t, 2H), 4.50-4.57 (m, 1H), 6.74 (t, 1H), 6.77 (d, 1H), 6.80 (d, 1H), 7.04 (t, 1H), 7.23 (t, 1H), 7.28 (d, 1H), 7.70 (d, 1H), 8.52 (s, 1H)

1. extractionextracted with ethyl acetate (3×30 mL)
2. dry with materialThe combined organic extracts were dried (MgSO4)
3. filtrationfiltered
4. customevaporated
5. customPurification by column chromatography on silica
6. washeluting with 50-100% ethyl acetate in hexanes