90% |
In ethanol for 4h; Reflux; |
41 Example 41 3-(2-(1H-pyrazolo[3,4-b]pyridin-5-yl)ethynyl)-4-methyl-N-(4-((4-methylpiperazin-1-yl)methyl)-3 -(trifluoromethyl)phenyl)benzamide dimesylate (D824 dimesylate)
Add 2.24 g methanesulfonic acid (23.31 mmol) dropwise into 3.1 g D824 (5.83 mmol) in 150 mL ethanol into in a 500 mL round flask. The reaction mixture turns clear when heated to boiling. After refluxing for 4 h, the reaction is cooled to room temperature, And white solid is collected and washed three times with ethanol after filtration. Then 3.86 g product was obtained as pale yellow solid after further dryness in vacuum (90%); 1HNMR (400 MHz, d-DMSO), δ10.66 (s, 1H), 8.73 (d, J=2.0 Hz, 1H), 8.52 (d, J=1.6Hz, 1H), 8.28 (d, J=1.6 Hz, 1H), 8.23 (s, 1H), 8.19 (s, 1H), 8.16 (d, J=7.6 Hz, 1H), 7.92 (dd, J=8.0,1.6 Hz, 1H), 7.78 (d, J=8.4 Hz, 1H), 7.53 (d, J=8.4 Hz, 1H), 4.00 (s, 2H), 3.19 (br, 6H), 2.85 (s, 3H), 2.77 (br, 2H), 2.58 (s, 3H), 2.41 (s, 6H). MS (ESI), m/z:.533 , 627 |
90% |
In ethanol for 4h; Reflux; |
41 3-(2-(1H-pyrazolo[3,4-b]pyridin-5-yl)ethynyl)-4-methyl-N-(4-((4-methylpiperazin-1-yl)methyl)-3-(trifluoromethyl)phenyl)benzamide dimesylate (D824 dimesylate)
Add 2.24 g methanesulfonic acid (23.31 mmol) drop wise into 3.1 g D824 (5.83 mmol) in 150 mL ethanol into in a 500 mL round flask. The reaction mixture turns clear when heated to boiling. After refluxing for 4 h, the reaction is cooled to room temperature, And white solid is collected and washed three times with ethanol after filtration. Then 3.86 g product was obtained as pale yellow solid after further dryness in vacuum (90%) 1HNMR (400 MHz, d-DMSO), 610.66 (s, 1H), 8.73 (d, J=2.0 Hz, 1H), 8.52 (d, J=1.6 Hz, 1H), 8.28 (d, J=1.6 Hz, 1H), 8.23 (s, 1H), 8.19 (s, 1H), 8.16 (d, J=7.6 Hz, 1H), 7.92 (dd, J=8.0, 1.6 Hz, 1H), 7.78 (d, J=8.4 Hz, 1H), 7.53 (d, J=8.4 Hz, 1H), 4.00 (s, 2H), 3.19 (br, 6H), 2.85 (s, 3H), 2.77 (br, 2H), 2.58 (s, 3H), 2.41 (s, 6H). MS (ESI), m/z: 533, 627 |