反応式
[CH3:1][C:2]1[CH:3]=[C:4]([CH3:19])[N:5]=[C:6]([NH:8][S:9]([C:12]2[CH:13]=[CH:14][C:15]([NH2:18])=[CH:16][CH:17]=2)(=[O:11])=[O:10])[N:7]=1.[CH2:20]([N:22]1[C:26]2[CH:27]=[CH:28][CH:29]=[CH:30][C:25]=2[N:24]=[C:23]1[CH2:31]Cl)[CH3:21].C(N(CC)CC)C.[I-].[Na+]>CO>[CH3:1][C:2]1[CH:3]=[C:4]([CH3:19])[N:5]=[C:6]([NH:8][S:9]([C:12]2[CH:17]=[CH:16][C:15]([NH:18][CH2:31][C:23]3[N:22]([CH2:20][CH3:21])[C:26]4[CH:27]=[CH:28][CH:29]=[CH:30][C:25]=4[N:24]=3)=[CH:14][CH:13]=2)(=[O:11])=[O:10])[N:7]=1参加物
6
実験手順
32.4 mg (0,12 mmol) sulfamethazine and 36 mg (0.18 mmol) 1-ethyl-2-chloromethylbenzimidazole were dissolved in 4 ml methanol. 64 μl (0.44 mmol) triethylamine and catalytic amount of sodium iodide were added to the reaction mixture. Solution was stirred and refluxed overnight. The reaction mixture was then evaporated to dryness, and purified on silica using gradient elution (chloroform to 5% methanol in chloroform) to provide white crystals of the title compound, 10 mg (20%). 1H NMR (DMSO-d6, 500 MHz): 7.68 (2H, m), 7.60 (1H, m), 7.52 (1H, m), 7.22 (1H, m), 7.17 (1H, m), 7.00 (1H, br, s), 6.78 (3H, m), 6.60 (1H, br, s), 4.60 (2H, m), 4.30 (2H, q, 7.2 Hz), 2.18 (6H, s), 1.28 (3H, t, 7.2 Hz); MS (ESI+): m/z 437 (M+H)+.
後処理
- temperaturerefluxed overnight
- customThe reaction mixture was then evaporated to dryness
- custompurified on silica using gradient elution (chloroform to 5% methanol in chloroform)
出典と根拠
- ORDレコード
- ord-2589bfd48aa7499dbd952b61b4c24db6
- 出典データセット
- uspto-grants-2004_07
- 特許番号
- US06767909B2
関連ノート
読み込み中…