Potassium Carbonate → 5-Chloro-2-imino-1-[3-(dimethylsulfamoyl)benzyl]-1,2-dihydropyridine-3-carboxamide hydrochloride
反応式
[C:1]([CH:3]([CH:7]1[C:11]([Cl:12])=[C:10](Cl)C(=O)O1)[C:4]([NH2:6])=[O:5])#[N:2].[NH2:15][CH2:16][C:17]1[CH:18]=[C:19]([S:23]([N:26]([CH3:28])[CH3:27])(=[O:25])=[O:24])[CH:20]=[CH:21][CH:22]=1.C(=O)([O-])[O-].[K+].[K+]>C(O)C>[ClH:12].[Cl:12][C:11]1[CH:7]=[C:3]([C:4]([NH2:6])=[O:5])[C:1](=[NH:2])[N:15]([CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[C:19]([S:23](=[O:25])(=[O:24])[N:26]([CH3:27])[CH3:28])[CH:18]=2)[CH:10]=1参加物
5
反応物 3
生成物 1
試薬・触媒・溶媒 1
反応条件
- 温度
- 70 °C
実験手順
(Step 2) To a suspension of 2-cyano-2-(3,4-dichloro-5-oxo-2,5-dihydrofuran-2-yl)acetamide (0.73 g) and 3-(aminomethyl)-N,N-dimethylbenzenesulfonamide obtained in Step 1 (1.0 g) in ethanol (10 ml) was added potassium carbonate (0.65 g) at room temperature, and the mixture was stirred overnight at 70° C. The reaction solution was filtered through celite. The solvent was evaporated under reduced pressure. The residue was purified by basic silica gel column chromatography (ethyl acetate:hexane=7:3→1:0). 4N Hydrochloride-ethyl acetate solution (1 ml) was added to the obtained yellow oil, and the precipitated crystals were collected by filtration, and recrystallized to give the title compound (306 mg).
後処理
- filtrationThe reaction solution was filtered through celite
- customThe solvent was evaporated under reduced pressure
- customThe residue was purified by basic silica gel column chromatography (ethyl acetate:hexane=7:3→1:0)
- addition4N Hydrochloride-ethyl acetate solution (1 ml) was added to the obtained yellow oil
- filtrationthe precipitated crystals were collected by filtration
- customrecrystallized
出典と根拠
- ORDレコード
- ord-a1d24b88d2a94249a280a33f527d0578
- 出典データセット
- uspto-grants-2011_07
- 特許番号
- US07982044B2
反応ノート
読み込み中…