N,N-Dimethylethylenediamine → 6-(2-Dimethylamino-ethylamino)-3-methoxy-4-methyl-5,10-diaza-benzo[c]fluoren-7-one
反応式
[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]2[C:18]3[C:17]4[CH:16]=[N:15][CH:14]=[CH:13][C:12]=4[C:11](=[O:19])[C:10]=3[C:9](OS(C3C=CC(C)=CC=3)(=O)=O)=[N:8][C:7]=2[C:31]=1[CH3:32].[CH3:33][N:34]([CH3:38])[CH2:35][CH2:36][NH2:37]>ClCCl>[CH3:33][N:34]([CH3:38])[CH2:35][CH2:36][NH:37][C:9]1[C:10]2[C:11](=[O:19])[C:12]3[CH:13]=[CH:14][N:15]=[CH:16][C:17]=3[C:18]=2[C:6]2[CH:5]=[CH:4][C:3]([O:2][CH3:1])=[C:31]([CH3:32])[C:7]=2[N:8]=1参加物
反応条件
- 温度
- 80 °C
実験手順
Toluene-4-sulfonic acid 3-methoxy-4-methyl-7-oxo-7H-5,10-diaza-benzo[c]fluoren-6-yl ester (Example 18c-1) (25 mg) was suspended in N,N-dimethylethylenediamine (0.5 ml) and the mixture was stirred at 80° C. for one hour. The mixture was diluted with dichloromethane and washed with saturated ammonium chloride solution and water. The organic layer was dried over anhydrous sodium sulfate and evaporated to dryness. The residue was purified by silica gel column chromatography developed by dichloromethane-methanol=50:1 and dichloromethane-methanol=10:1. The desired product was obtained as a reddish powder (21 mg). ESI−MS: m/z 363 (MH+); 1H-NMR (CDCl3): δ2.36 (6H, s), 2.51 (3H, s), 2.66 (2H, t, J=6.5 Hz), 3.82 (2H, quartet like, J=ca 6.5 Hz), 4.02 (3H, s), 7.12 (1H, d, J=9 Hz,), 7.18 (1H, brt, J=ca 5.5 Hz), 7.54 (1H, dd, J=4.5 Hz, 1 Hz), 8.05 (1H, d, J=9 Hz), 8.80 (1H, d, J=4.5 Hz), 9.27 (1H, d, J=1 Hz).
後処理
- washwashed with saturated ammonium chloride solution and water
- dry with materialThe organic layer was dried over anhydrous sodium sulfate
- customevaporated to dryness
- customThe residue was purified by silica gel column chromatography
出典と根拠
- ORDレコード
- ord-c1237e161cc442f2874cd9867a7b3e5e
- 出典データセット
- uspto-grants-2004_01
- 特許番号
- US06680326B2
反応ノート
読み込み中…