Lithium Hydroxide → HCID 178525787、化合物
反応式
[OH-].[Li+].[Cl:3][C:4]1[CH:5]=[N:6][N:7]([C:9]2([C:12]3[NH:31][C:15]4=[N:16][C:17]([N:20]5[CH2:25][CH2:24][CH2:23][C@@H:22]([C:26]([O:28]CC)=[O:27])[CH2:21]5)=[CH:18][CH:19]=[C:14]4[N:13]=3)[CH2:11][CH2:10]2)[CH:8]=1>O1CCCC1.O>[Cl:3][C:4]1[CH:5]=[N:6][N:7]([C:9]2([C:12]3[NH:31][C:15]4=[N:16][C:17]([N:20]5[CH2:25][CH2:24][CH2:23][C@@H:22]([C:26]([OH:28])=[O:27])[CH2:21]5)=[CH:18][CH:19]=[C:14]4[N:13]=3)[CH2:10][CH2:11]2)[CH:8]=1参加物
4
実験手順
Lithium hydroxide (500 mg, 10.20 mmol) was added to a solution of (R)-ethyl 1-(2-(1-(4-chloro-1H-pyrazol-1-yl)cyclopropyl)-3H-imidazo[4,5-b]pyridin-5-yl)piperidine-3-carboxylate (900 mg, 2.17 mmol) in tetrahydrofuran/water (1:1, 10 mL) at room temperature. The reaction mixture was stirred for 3 h. The solvent was removed under reduced pressure and to the residue was added water. The pH of the mixture was adjusted to 6 using an aqueous solution of hydrochloric acid (1N). The mixture was extracted with ethyl acetate and the organics were dried over sodium sulfate, filtered and concentrated to afford (R)-1-(2-(1-(4-chloro-1H-pyrazol-1-yl)cyclopropyl)-3H-imidazo[4,5-b]pyridin-5-yl)piperidine-3-carboxylic acid (700 mg). MS (ES+) (M+H) 387.1; LCMS retention time 1.971 min (Method N1).