Acetic Acid → HCID 59473817, 화합물

HRID 2069718노트

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HRID 2069718 반응식
[C:1]([O:5][C:6](=[O:25])[N:7]([C:16]1[C:17](=[O:24])[N:18]([CH3:23])[CH:19]=[C:20]([Br:22])[CH:21]=1)[C:8]1[CH:13]=[CH:12][C:11]([CH:14]=O)=[CH:10][N:9]=1)([CH3:4])([CH3:3])[CH3:2].[CH3:26][N:27]1[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(O)(=O)C>C(Cl)Cl>[C:1]([O:5][C:6](=[O:25])[N:7]([C:16]1[C:17](=[O:24])[N:18]([CH3:23])[CH:19]=[C:20]([Br:22])[CH:21]=1)[C:8]1[CH:13]=[CH:12][C:11]([CH2:14][N:30]2[CH2:31][CH2:32][N:27]([CH3:26])[CH2:28][CH2:29]2)=[CH:10][N:9]=1)([CH3:2])([CH3:4])[CH3:3]

참가 물질

6

반응물 4

HCID 176Acetic AcidHCID 531671-MethylpiperazineHCID 5049666Sodium triacetoxyborohydrideHCID 59473778HCID 59473778, 화합물

생성물 1

HCID 59473817HCID 59473817, 화합물수율 89.5%

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

실험 절차

To a solution of (5-bromo-1-methyl-2-oxo-1,2-dihydro-pyridin-3-yl)-(5-formyl-pyridin-2-yl)-carbamic acid tert-butyl ester (1.0 g, 2.45 mmol) in DCM (49 ml) was added 1-methylpiperazine (491 mg, 4.9 mmol), sodium triacetoxyborohydride (1.3 g, 6.12 mmol) and acetic acid (294 mg, 4.9 mmol). The reaction mixture was heated to 40 degrees centigrade and stirred overnight. The reaction was diluted with DCM, washed with saturated aqueous sodium bicarbonate, dried and concentrated. The crude product was purified by flash chromatography using a gradient of 0% to 20% methanol in DCM to give 1.08 g (89.5%) of (5-bromo-1-methyl-2-oxo-1,2-dihydro-pyridin-3-yl)-[5-(4-methyl-piperazin-1-ylmethyl)-pyridin-2-yl]-carbamic acid tert-butyl ester.

후처리

  1. temperatureThe reaction mixture was heated to 40 degrees centigrade
  2. washwashed with saturated aqueous sodium bicarbonate
  3. customdried
  4. concentrationconcentrated
  5. customThe crude product was purified by flash chromatography

출처 및 근거

ORD 기록
ord-693550f3334d479b9d43a859cf86c040
출처 데이터셋
uspto-grants-2012_10
특허 번호
US08299077B2

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