Phosphorus oxychloride → 2-Chloro-1-propyl-8-[6-(3-trifluoromethyl-benzylamino)-pyridin-3-yl]-1,7-dihydro-purin-6-one
反応式
[CH2:1]([N:4]1[C:12](=[O:13])[C:11]2[NH:10][C:9]([C:14]3[CH:15]=[N:16][C:17]([NH:20][CH2:21][C:22]4[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([F:31])([F:30])[F:29])[CH:23]=4)=[CH:18][CH:19]=3)=[N:8][C:7]=2[NH:6][C:5]1=O)[CH2:2][CH3:3].O=P(Cl)(Cl)[Cl:35].[NH4+].[Cl-]>>[Cl:35][C:5]1[N:4]([CH2:1][CH2:2][CH3:3])[C:12](=[O:13])[C:11]2[NH:10][C:9]([C:14]3[CH:15]=[N:16][C:17]([NH:20][CH2:21][C:22]4[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([F:31])([F:30])[F:29])[CH:23]=4)=[CH:18][CH:19]=3)=[N:8][C:7]=2[N:6]=1参加物
4
反応条件
- 温度
- 127.5 °C
実験手順
A mixture of 1-Propyl-8-[6-(3-trifluoromethyl-benzylamino)-pyridin-3-yl]-3,7-dihydro-purine-2,6-dione (0.2 g, 0.45 mmol), POCl3 (5 ml) and NH4Cl (0.486 g, 9 mmol) were heated at 125-130° C. for 20 hours. Reaction mixture was cooled to 20-25° C. It was then concentrated under vacuum. The residue was dissolved in water (50 ml) and precipitated solid was filtered off. The solid obtained was further purified by column chromatography to obtain pure 2-Chloro-1-propyl-8-[6-(3-trifluoromethyl-benzylamino)-pyridin-3-yl]-1,7-dihydro-purin-6-one as pale yellow solid (0.054 g, 26%).