Potassium Carbonate → 3-iodo-1-((6-methoxypyridin-2-yl)methyl)-4-nitro-1H-indazole

反応式

[I:1][C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][C:9]=2[N+:11]([O-:13])=[O:12])[NH:4][N:3]=1.C([O-])([O-])=O.[K+].[K+].Br[CH2:21][C:22]1[CH:27]=[CH:26][CH:25]=[C:24]([O:28][CH3:29])[N:23]=1>CN(C=O)C>[I:1][C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][C:9]=2[N+:11]([O-:13])=[O:12])[N:4]([CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[C:24]([O:28][CH3:29])[N:23]=2)[N:3]=1

参加物

実験手順

To 3-iodo-4-nitro-1H-indazole (5.01 g, 17.3 mmol) in DMF (40 mL) was added K2CO3 (4.79 g, 34.7 mmol) and 2-(bromomethyl)-6-methoxypyridine (4.20 g, 20.8 mmol). The reaction mixture was stirred for 4 hours. The reaction mixture was concentrated to remove DMF, diluted with EtOAc and washed with H2O and brine. The organic phase was dried (Na2SO4) and concentrated. Silica gel chromatography (EtOAc/Hexane 1:5) gave the desired product (5.68 g).