反応式
Cl[C:2]1[N:7]([CH2:8][C:9]2[CH:14]=[CH:13][C:12]([C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=3[C:21]3[N:25](C(C4C=CC=CC=4)(C4C=CC=CC=4)C4C=CC=CC=4)[N:24]=[N:23][N:22]=3)=[CH:11][CH:10]=2)[C:6](=[O:45])[N:5]([CH2:46][CH2:47][CH3:48])[C:4](=[O:49])[CH:3]=1.[CH2:50]([SH:55])[CH2:51][CH2:52][CH2:53][CH3:54].C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[CH2:50]([S:55][C:2]1[N:7]([CH2:8][C:9]2[CH:10]=[CH:11][C:12]([C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=3[C:21]3[NH:22][N:23]=[N:24][N:25]=3)=[CH:13][CH:14]=2)[C:6](=[O:45])[N:5]([CH2:46][CH2:47][CH3:48])[C:4](=[O:49])[CH:3]=1)[CH2:51][CH2:52][CH2:53][CH3:54]参加物
実験手順
A mixture of 6-chloro-3-propyl-1-[[2'-(N-trityltetrazol-5-yl)biphenyl-4-yl]methyl]pyrimidine-2,4(1H,3H)-dione (0.5 g), pentylmercaptan (0.12 ml) and potassium carbonate (0.13 g) in acetonitrile (10 ml) was heated under reflux for 4 hours with stirring. The reaction mixture was allowed to cool and the precipitate was removed by filtration. The filtrate was concentrated to dryness. The resulting residue was dissolved in methanol (15 ml) and then 1N hydrochloric acid (1.5 ml) was added to the solution, followed by stirring at room temperature for 2 hours. The reaction mixture was concentrated to dryness and then the residue was extracted with methylene chloride-water. The organic layer was washed with water, dried, and evaporated to dryness. The resulting residue was purified by column chromatography on silica gel to give colorless amorphous powders (0.16 g, 43%).
後処理
- temperaturewas heated
- temperatureunder reflux for 4 hours
- temperatureto cool
- customthe precipitate was removed by filtration
- concentrationThe filtrate was concentrated to dryness
- dissolutionThe resulting residue was dissolved in methanol (15 ml)
- addition1N hydrochloric acid (1.5 ml) was added to the solution
- stirringby stirring at room temperature for 2 hours
- concentrationThe reaction mixture was concentrated to dryness
- extractionthe residue was extracted with methylene chloride-water
- washThe organic layer was washed with water
- customdried
- customevaporated to dryness
- customThe resulting residue was purified by column chromatography on silica gel
出典と根拠
- ORDレコード
- ord-93b5db0e8e77449498028c7166f52955
- 出典データセット
- uspto-grants-1992_11
- 特許番号
- US05162326
関連ノート
読み込み中…