Dimethylformamide → 4-[1-(4-fluorophenyl)-1H-indazol-3-yl]-1-piperazine carboxamide
反応式
[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[C:10]([N:17]3[CH2:22][CH2:21][NH:20][CH2:19][CH2:18]3)=[N:9]2)=[CH:4][CH:3]=1.[N+]([NH:26][C:27](N)=[O:28])([O-])=O.CN(C)C=O>O>[F:1][C:2]1[CH:3]=[CH:4][C:5]([N:8]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[C:10]([N:17]3[CH2:18][CH2:19][N:20]([C:27]([NH2:26])=[O:28])[CH2:21][CH2:22]3)=[N:9]2)=[CH:6][CH:7]=1参加物
5
実験手順
A mixture of 5.0 g of 1-(4-fluorophenyl)-3-(1-piperazinyl)-1H-indazole, 5.1 g of nitrourea, and 80 ml of dimethylformamide was heated on a steam bath for 15 minutes. The reaction mixture was then poured into water and the resulting precipitate was recrystallized from ethyl acetate (2×) to yield 2.7 g (47%) of 4-[1-(4-fluorophenyl)-1H-indazol-3-yl]-1-piperazine carboxamide, m.p. 148°-150°.