反応式
C(O[CH2:9][C:10]1[N:15]=[C:14]([NH2:16])[N:13]=[C:12]([NH2:17])[C:11]=1[C:18]1[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][C:19]=1[Cl:25])C1C=CC=CC=1.[BrH:26]>C(O)(=O)C>[NH2:16][C:14]1[N:13]=[C:12]([NH2:17])[C:11]([C:18]2[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][C:19]=2[Cl:25])=[C:10]([CH2:9][Br:26])[N:15]=1参加物
4
反応条件
- 温度
- 100 °C
実験手順
2,4-Diamino-6-benzyloxymethyl-5-(2,4-dichlorophenyl)pyrimidine (Example 26) (6.5 g) was dissolved in a 47% solution of hydrobromic acid in acetic acid (75 ml) and the mixture stirred and heated at 100° C. for 6 hours. After standing at room temperature overnight the dihydrobromide salt was filtered off, washed with ether and dried in vacuo, 6 g. To a stirred solution of the dihydrobromide salt (0.43 g) in dimethylsulphoxide (4 ml) was added dropwise a solution of sodium bicarbonate (0.84 g) in water (10 ml). After 30 minutes the precipitate was filtered off washed with water then ether and dried in vacuo, 0.26 g, mp.>270° C. (decomposes).
後処理
- filtrationthe dihydrobromide salt was filtered off
- washwashed with ether
- customdried in vacuo, 6 g
- additionTo a stirred solution of the dihydrobromide salt (0.43 g) in dimethylsulphoxide (4 ml) was added dropwise a solution of sodium bicarbonate (0.84 g) in water (10 ml)
- filtrationAfter 30 minutes the precipitate was filtered off
- washwashed with water
- dry with materialether and dried in vacuo, 0.26 g, mp.>270° C. (decomposes)
出典と根拠
- ORDレコード
- ord-ac6f1b8cd2cd4ac199eefa730bcb7891
- 出典データセット
- uspto-grants-1996_12
- 特許番号
- US05587380
関連ノート
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