4-(3-chloro-phenylamino)-3-(4-tert-butyloxycarbonyl-piperazin-1-yl)-1H-pyrazolo[3,4-d]pyrimidine → 4-(3-chlorophenylamino)-3-(piperazin-1-yl)-1H-pyrazolo[3,4-d]pyrimidine dihydrochloride
反応式
[Cl:1][C:2]1[CH:3]=[C:4]([NH:8][C:9]2[N:14]=[CH:13][N:12]=[C:11]3[NH:15][N:16]=[C:17]([N:18]4[CH2:23][CH2:22][N:21](C(OC(C)(C)C)=O)[CH2:20][CH2:19]4)[C:10]=23)[CH:5]=[CH:6][CH:7]=1>O1CCOCC1.Cl.O1CCOCC1>[ClH:1].[ClH:1].[Cl:1][C:2]1[CH:3]=[C:4]([NH:8][C:9]2[N:14]=[CH:13][N:12]=[C:11]3[NH:15][N:16]=[C:17]([N:18]4[CH2:23][CH2:22][NH:21][CH2:20][CH2:19]4)[C:10]=23)[CH:5]=[CH:6][CH:7]=1参加物
4
実験手順
Under a nitrogen atmosphere, 2.0 g (4.65 mmol) of 4-(3-chloro-phenylamino)-3-(4-tert-butyloxycarbonyl-piperazin-1-yl)-1H-pyrazolo[3,4-d]pyrimidine (see Example 24) in 80 ml of dioxane and 80 ml of HCl/dioxane (4N) are stirred at 60° C. for 2 hours. Cooling and filtering yield 4-(3-chloro-phenylamino)-3-(piperazin-1-yl)-1H-pyrazolo[3,4-d]pyrimidine dihydrochloride; analysis calc. for C15H16N7Cl.2HCl (+0.14 H2O+5% dioxane): C44.93%, H 4.78%, N 22.97%, Cl 24.91%, H2O 0.68%; found C45.12%, H 4.73%, N 23.16%, Cl 24.67%, H2O 0.68%; HPLC: tRet(grad20-100/20)=8.0.
後処理
- temperatureCooling
- filtrationfiltering
出典と根拠
- ORDレコード
- ord-5d9b1ed2dc4b477db8e43d891d64948d
- 出典データセット
- uspto-grants-2001_06
- 特許番号
- US06251911B1
反応ノート
読み込み中…