[C:1]([C:3]1[CH:4]=[C:5]([CH:8]=[CH:9][CH:10]=1)[CH:6]=O)#[N:2].[F:11][C:12]1[CH:13]=[C:14]2[C:18](=[CH:19][C:20]=1[F:21])[NH:17][C:16]([C:22]1[CH:23]=[CH:24][C:25]([O:29][CH3:30])=[C:26]([NH2:28])[CH:27]=1)=[CH:15]2.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)(O)[O-].[Na+]>C(Cl)Cl.C(O)(=O)C>[F:11][C:12]1[CH:13]=[C:14]2[C:18](=[CH:19][C:20]=1[F:21])[NH:17][C:16]([C:22]1[CH:23]=[CH:24][C:25]([O:29][CH3:30])=[C:26]([NH:28][CH2:6][C:5]3[CH:8]=[CH:9][CH:10]=[C:3]([C:1]#[N:2])[CH:4]=3)[CH:27]=1)=[CH:15]23-Cyanobenzaldehyde (0.262 g, 2.0 mmol) was added to a stirred mixture of 5-(5,6-difluoro-1H-indol-2-yl)-2-methoxy-phenylamine (0.548 g, 2.0 mmol) in methylene chloride (125 mL), followed by acetic acid (0.2 g). The resulting mixture was stirred at room temperature for 1 hour. Sodium triacetoxyborohydride (0.46 g, 2.0 mmol) was added in one portion, and the resulting homogeneous solution stirred at room temperature for 3 days. Saturated aqueous sodium bicarbonate solution (100 mL) was added and the mixture stirred for 2 hours. The mixture was shaken, the organic layer separated and dried over Na2S4. The solvent was evaporated to give a white solid. Recrystallization from methanol gave the product (500 mg), mp 154-155° C.
Loading…