Potassium Carbonate → (R)-tert-butyl 3-(4-amino-3-(4-nitrophenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)pyrrolidine-1-carboxylate

HRID 2365775ノート

反応式

HRID 2365775 の反応式
[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([C:10]2[C:18]3[C:13](=[N:14][CH:15]=[N:16][C:17]=3[NH2:19])[NH:12][N:11]=2)=[CH:6][CH:5]=1)([O-:3])=[O:2].C([O-])([O-])=O.[K+].[K+].CS(O[C@H:31]1[CH2:35][CH2:34][N:33]([C:36]([O:38][C:39]([CH3:42])([CH3:41])[CH3:40])=[O:37])[CH2:32]1)(=O)=O>CN(C=O)C>[NH2:19][C:17]1[N:16]=[CH:15][N:14]=[C:13]2[N:12]([C@@H:35]3[CH2:31][CH2:32][N:33]([C:36]([O:38][C:39]([CH3:42])([CH3:41])[CH3:40])=[O:37])[CH2:34]3)[N:11]=[C:10]([C:7]3[CH:6]=[CH:5][C:4]([N+:1]([O-:3])=[O:2])=[CH:9][CH:8]=3)[C:18]=12

参加物

5

反応物 3

HCID 11430Potassium CarbonateHCID 11032777(S)-1-Boc-3-methanesulfonyloxy-pyrrolidineHCID 178508716HCID 178508716、化合物

生成物 1

HCID 58506738(R)-tert-butyl 3-(4-amino-3-(4-nitrophenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)pyrrolidine-1-carboxylate収率 46%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

A solution of 3-(4-nitrophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (0.5 g, 1.95 mmol), K2CO3 (1.08 g, 7.8 mmol), and (S)-1-(tert-butoxycarbonyl)pyrrolidin-3-yl methanesulfonate (0.62 g, 2.34 mmol) in DMF (20 mL) was brought to 80° C. under an argon atmosphere. The reaction mixture was left stirring for 2 hours, then cooled and filtered. The filtrate was concentrated in vacuo, but not to dryness. 20 mL of 0.1 sodium citrate was added causing a solid to form, which was collected by filtration to afford (R)-tert-butyl 3-(4-amino-3-(4-nitrophenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)pyrrolidine-1-carboxylate (0.38 g, 46% yield). ESI-MS m/z [M+H]+ found 426.5, calculated 426.2.

後処理

  1. customwas brought to 80° C. under an argon atmosphere
  2. waitThe reaction mixture was left
  3. temperaturecooled
  4. filtrationfiltered
  5. concentrationThe filtrate was concentrated in vacuo
  6. addition20 mL of 0.1 sodium citrate was added
  7. customto form
  8. filtrationwhich was collected by filtration

出典と根拠

ORDレコード
ord-d8b3932d0fd14f0da18ec58cb5851cb3
出典データセット
uspto-grants-2014_04
特許番号
US08697709B2

反応ノート

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