反応式
[I:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[CH:13]=[C:12]([O:14][CH3:15])[C:11](=[O:16])[C:10]([C:17](N(OC)C)=[O:18])=[N:9]2)=[C:4]([O:23][CH3:24])[CH:3]=1.Cl.[CH2:26]1COCC1>>[C:17]([C:10]1[C:11](=[O:16])[C:12]([O:14][CH3:15])=[CH:13][N:8]([C:5]2[CH:6]=[CH:7][C:2]([I:1])=[CH:3][C:4]=2[O:23][CH3:24])[N:9]=1)(=[O:18])[CH3:26]参加物
4
実験手順
To a solution of 1-(4-iodo-2-methoxyphenyl)-N,5-dimethoxy-N-methyl-4-oxo-1,4-dihydropyridazine-3-carboxamide (8.90 g) in THF (150 mL) was added dropwise 1M methylmagnesium bromide THF solution (30 mL) at −78° C., and the mixture was stirred for 20 min. To the reaction mixture was added 1M hydrochloric acid, and the mixture was extracted with ethyl acetate. The extract was washed with water and saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was washed with ethyl acetate, and recrystallized from methanol/water to give the title compound (5.12 g).
後処理
- extractionthe mixture was extracted with ethyl acetate
- washThe extract was washed with water and saturated brine
- dry with materialdried over anhydrous magnesium sulfate
- concentrationconcentrated under reduced pressure
- washThe residue was washed with ethyl acetate
- customrecrystallized from methanol/water
出典と根拠
- ORDレコード
- ord-f72b8724a7504dfb83551c3d726fef6d
- 出典データセット
- uspto-grants-2015_07
- 特許番号
- US09090586B2
関連ノート
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