Dimethyl Sulfoxide → 1-ethyl-N-(4-pyridinylmethyl)-1H-pyrazolo[3,4-b]quinolin-4-amine

反応式

[CH2:1]([N:3]1[C:7]2=[N:8][C:9]3[C:14]([C:15](Cl)=[C:6]2[CH:5]=[N:4]1)=[CH:13][CH:12]=[CH:11][CH:10]=3)[CH3:2].CS(C)=O.[NH2:21][CH2:22][C:23]1[CH:28]=[CH:27][N:26]=[CH:25][CH:24]=1>O>[CH2:1]([N:3]1[C:7]2=[N:8][C:9]3[C:14]([C:15]([NH:21][CH2:22][C:23]4[CH:28]=[CH:27][N:26]=[CH:25][CH:24]=4)=[C:6]2[CH:5]=[N:4]1)=[CH:13][CH:12]=[CH:11][CH:10]=3)[CH3:2]

参加物

実験手順

A mixture of 1-ethyl-4-chloro-1H-pyrazolo[3,4-b]quinoline (1.0 g, 4.3 mmol), DMSO (3 ml) and 4-(aminomethyl)pyridine (0.92 ml, 9 mmol) is heated at 80°-90° C. overnight. The reaction mixture is poured into water (200 ml) NH4OH (1 ml), and the mixture is extracted with CH2Cl2 (3×100 ml). The CH2Cl2 layers are combined, dried over MgSO4 and evaporated. The residue is crystallized from ethyl acetate and recrystallized from ethyl acetate to afford 450 mg of 1-ethyl-N-(4-pyridinylmethyl)-1H-pyrazolo[3,4-b]quinolin-4-amine, m.p. 191°-192° C.