Trifluoroacetic acid → 3-[4-(3,5-difluorophenoxy)phenyl]-1-[(3R)-piperidin-3-yl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine
反応式
[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([C@@H:26]3[CH2:31][CH2:30][CH2:29][N:28](C(OC(C)(C)C)=O)[CH2:27]3)[N:9]=[C:10]([C:11]3[CH:16]=[CH:15][C:14]([O:17][C:18]4[CH:23]=[C:22]([F:24])[CH:21]=[C:20]([F:25])[CH:19]=4)=[CH:13][CH:12]=3)[C:3]=12.FC(F)(F)C(O)=O>ClCCl>[F:25][C:20]1[CH:19]=[C:18]([CH:23]=[C:22]([F:24])[CH:21]=1)[O:17][C:14]1[CH:15]=[CH:16][C:11]([C:10]2[C:3]3[C:4](=[N:5][CH:6]=[N:7][C:2]=3[NH2:1])[N:8]([C@@H:26]3[CH2:31][CH2:30][CH2:29][NH:28][CH2:27]3)[N:9]=2)=[CH:12][CH:13]=1参加物
4
反応物 2
生成物 1
試薬・触媒・溶媒 1
実験手順
Into a 100 mL round-bottom flask, was placed a solution of tert-butyl (3R)-3-[4-amino-3-[4-(3,5-difluorophenoxy)phenyl]-1H-pyrazolo[3,4-d]pyrimidin-1-yl]piperidine-1-carboxylate (340 mg, 0.65 mmol, 1.00 equiv) in dichloromethane (50 mL), followed by the addition of trifluoroacetic acid (10 mL) dropwise with stirring. The resulting solution was stirred for 12 h at room temperature and then concentrated under vacuum. The resulting solution was diluted with 20 mL of water. The pH value of the solution was adjusted to >7 with sodium carbonate and then extracted with dichloromethane and the organic layers combined and dried over anhydrous sodium sulfate and concentrated under vacuum to give 210 mg (76%) of 3-[4-(3,5-difluorophenoxy)phenyl]-1-[(3R)-piperidin-3-yl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine as a brown solid.