反応式
Cl.[Cl:2][C:3]1[CH:4]=[C:5]([CH:7]=[CH:8][CH:9]=1)[NH2:6].[NH2:10][C:11]1[CH:16]=[CH:15][C:14]([C:17]2[C:21](C#N)=[C:20]([N:24]=[CH:25][N:26]([CH3:28])C)[NH:19][N:18]=2)=[CH:13][CH:12]=1>CO>[NH2:10][C:11]1[CH:12]=[CH:13][C:14]([C:17]2[C:21]3[C:20](=[N:24][CH:25]=[N:26][C:28]=3[NH:6][C:5]3[CH:7]=[CH:8][CH:9]=[C:3]([Cl:2])[CH:4]=3)[NH:19][N:18]=2)=[CH:15][CH:16]=1参加物
4
実験手順
With the exclusion of moisture, 62 mg (0.38 mmol) of 3-chloro-aniline hydrochloride (see Step 14.4) are added to 92 mg (0.36 mmol) of N'-[3-(4-amino-phenyl)-4-cyano-1H-pyrazol-5-yl]-N,N-dimethylformamidine in 1 ml of methanol and the reaction mixture is boiled under reflux for 28 hours. The light-yellow reaction solution is cooled, concentrated by evaporation and chromatographed (SiO2, methylene chloride/ethanol [10:1]). Crystallization from isopropanol yields 3-(4-amino-phenyl)-4-(3-chloro-phenylamino)-1H-pyrazolo[3,4-d]pyrimidine; TLC: Rf =0.33 (methylene chloride:methanol=10:1); FAB-MS: (M)+ =336; HPLC: TRet (Grad20-100)=9.2, TRet (Grad5-40)=18.8.
後処理
- temperatureunder reflux for 28 hours
- temperatureThe light-yellow reaction solution is cooled
- concentrationconcentrated by evaporation
- customchromatographed (SiO2, methylene chloride/ethanol [10:1])
- customCrystallization from isopropanol
出典と根拠
- ORDレコード
- ord-32e83acf70044d60afe7b9f0b645144e
- 出典データセット
- uspto-grants-1999_11
- 特許番号
- US05981533
関連ノート
読み込み中…