反应详情

温度

110 °C

A suspension of N-(7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)-4-(2-hydroxypropan-2-yl)benzamide (2F, 100 mg, 0.290 mmol), 6-ethoxypyridin-3-ylboronic acid (63 mg, 0.377 mmol), and 1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (21 mg, 29 μmol) in 2:1 1,4-dioxane/saturated aqueous NaHCO3 (0.966 mL of 1,4-dioxane and 0.483 mL of saturated aqueous NaHCO3) was prepared in a 10 mL microwave reaction vessel and the sealed reaction vessel warmed to 110° C. for 10 minutes in a CEM microwave reactor. The reaction mixture was cooled to rt, diluted with methanol, filtered, and purified via preparative HPLC (50-60% MeCN/H2O gradient+0.01% TFA). Lyophilization of the combined fractions gave the titled compound as a yellow solid (50.2 mg, 40%). Melting point (183.5-185.5° C.). 1H NMR (DMSO-d6) δ: 11.13 (s, 1H), 8.85 (dd, J=2.5, 0.5 Hz, 1H), 8.34 (dd, J=8.6, 2.5 Hz, 1H), 7.95 (d, J=8.8 Hz, 2H), 7.92 (s, 1H), 7.55 (d, J=8.6 Hz, 2H), 6.98 (dd, J=8.8, 0.8 Hz, 1H), 6.32 (s, 1H), 5.11 (br. s., 1H), 4.37 (q, J=6.9 Hz, 2H), 2.34 (s, 3H), 1.39 (s, 6H), 1.31 (t, 3H); ESI-MS: m/z 432.2 (M+H)+. Melting point (183.5-185.5° C.).

1. customwas prepared in a 10 mL microwave reaction vessel
2. customthe sealed reaction vessel
3. temperatureThe reaction mixture was cooled to rt
4. filtrationfiltered
5. custompurified via preparative HPLC (50-60% MeCN/H2O gradient+0.01% TFA)