Benzylamine → N-benzyl-5-(3,4-dichlorophenyl)-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxamide

HRID 11882

반응식

HRID 11882 반응식
F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.[Cl:28][C:29]1[CH:30]=[C:31]([C:36]2[CH:41]=[C:40]([C:42]([F:45])([F:44])[F:43])[N:39]3[N:46]=[C:47]([C:49](O)=[O:50])[CH:48]=[C:38]3[N:37]=2)[CH:32]=[CH:33][C:34]=1[Cl:35].[CH2:52]([NH2:59])[C:53]1[CH:58]=[CH:57][CH:56]=[CH:55][CH:54]=1.C(N(CC)CC)C>O1CCCC1.C(OCC)C>[CH2:52]([NH:59][C:49]([C:47]1[CH:48]=[C:38]2[N:37]=[C:36]([C:31]3[CH:32]=[CH:33][C:34]([Cl:35])=[C:29]([Cl:28])[CH:30]=3)[CH:41]=[C:40]([C:42]([F:45])([F:43])[F:44])[N:39]2[N:46]=1)=[O:50])[C:53]1[CH:58]=[CH:57][CH:56]=[CH:55][CH:54]=1

참가 물질

7

실험 절차

Benzotriazol-1-yloxy-tris(dimethylamino)-phosphonium hexafluorophosphate (BOP) (0.845 g, 1.91 mmol) was added to a suspension of 5-(3,4-dichloro-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid (0.600 g, 1.59 mmol) and benzylamine (0.209 mL, 1.91 mmol) in tetrahydrofuran (25 ml) containing triethylamine (0.665 mL, 4.77 mmol). The reaction mixture was stirred overnight at room temperature, diluted with ethyl ether (25 mL) and washed with a saturated aqueous solution of sodium bicarbonate (50 mL). The organic layer was collected, concentrated under reduced pressure and the crude product was purified by column chromatography on silica gel to give 5-(3,4-dichloro-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid benzylamide (0.665 g, 89%).

후처리

  1. washwashed with a saturated aqueous solution of sodium bicarbonate (50 mL)
  2. customThe organic layer was collected
  3. concentrationconcentrated under reduced pressure
  4. customthe crude product was purified by column chromatography on silica gel

출처 및 근거

ORD 기록
ord-ad52a17fa51e4b88856111c6d4ba70a8
출처 데이터셋
uspto-grants-2006_08
특허 번호
US07098335B2

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