Triethylamine → 5-(4-bromophenyl)-N-(thiophen-2-ylmethyl)-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxamide

HRID 2307944

反応式

HRID 2307944 の反応式
F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.[Br:28][C:29]1[CH:34]=[CH:33][C:32]([C:35]2[CH:40]=[C:39]([C:41]([F:44])([F:43])[F:42])[N:38]3[N:45]=[C:46]([C:48]([OH:50])=O)[CH:47]=[C:37]3[N:36]=2)=[CH:31][CH:30]=1.[S:51]1[CH:55]=[CH:54][CH:53]=[C:52]1[CH2:56][NH2:57].C(N(CC)CC)C>C1COCC1.C(OCC)C>[S:51]1[CH:55]=[CH:54][CH:53]=[C:52]1[CH2:56][NH:57][C:48]([C:46]1[CH:47]=[C:37]2[N:36]=[C:35]([C:32]3[CH:33]=[CH:34][C:29]([Br:28])=[CH:30][CH:31]=3)[CH:40]=[C:39]([C:41]([F:44])([F:42])[F:43])[N:38]2[N:45]=1)=[O:50]

参加物

7

実験手順

Benzotriazol-1-yloxy-tris(dimethylamino)-phosphonium hexafluorophosphate (BOP) (0.144 g, 0.327 mmol) was added to a suspension of 5-(4-bromo-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid (0.115 g, 0.298 mmol) and thiophene-2-methylamine (0.034 mL, 0.327 mmol) in THF (10 mL) containing triethylamine (0.124 mL, 0.893 mmol). The reaction mixture was stirred overnight at room temperature, diluted with ethyl ether (5 mL) and washed with a saturated aqueous solution of sodium bicarbonate (10 mL). The organic layer was collected, concentrated under reduced pressure and the crude product was purified by column chromatography to give 5-(4-bromo-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid (thiophen-2-ylmethyl)-amide (0.105 g, 73%).

後処理

  1. washwashed with a saturated aqueous solution of sodium bicarbonate (10 mL)
  2. customThe organic layer was collected
  3. concentrationconcentrated under reduced pressure
  4. customthe crude product was purified by column chromatography

出典と根拠

ORDレコード
ord-1508177c78c54f6c8475a6029c39a750
出典データセット
uspto-grants-2004_12
特許番号
US06833371B2

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