Ethyl Acetate → Methyl 3-[(2S)-1-(difluoromethoxy)propan-2-yl]oxy-5-[5-(dimethylcarbamoyl)pyrazin-2-yl]oxy-benzoate

HRID 2241945노트

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HRID 2241945 반응식
[F:1][CH:2]([F:19])[O:3][CH2:4][C@@H:5]([O:7][C:8]1[CH:9]=[C:10]([CH:15]=[C:16]([OH:18])[CH:17]=1)[C:11]([O:13][CH3:14])=[O:12])[CH3:6].Cl[C:21]1[N:22]=[CH:23][C:24]([C:27]([N:29]([CH3:31])[CH3:30])=[O:28])=[N:25][CH:26]=1.C(=O)([O-])[O-].[K+].[K+].C(OCC)(=O)C>C(#N)C>[F:1][CH:2]([F:19])[O:3][CH2:4][C@@H:5]([O:7][C:8]1[CH:9]=[C:10]([CH:15]=[C:16]([O:18][C:21]2[CH:26]=[N:25][C:24]([C:27](=[O:28])[N:29]([CH3:30])[CH3:31])=[CH:23][N:22]=2)[CH:17]=1)[C:11]([O:13][CH3:14])=[O:12])[CH3:6]

참가 물질

6

반응물 4

HCID 8857Ethyl AcetateHCID 11430Potassium CarbonateHCID 590004705-chloro-N,N-dimethylpyrazine-2-carboxamideHCID 59127138methyl 3-[(2S)-1-(difluoromethoxy)propan-2-yl]oxy-5-hydroxy-benzoate

생성물 1

HCID 59205092Methyl 3-[(2S)-1-(difluoromethoxy)propan-2-yl]oxy-5-[5-(dimethylcarbamoyl)pyrazin-2-yl]oxy-benzoate수율 77.5%

시약·촉매·용매 1

HCID 6342Acetonitrile용매

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온도
140 °C

실험 절차

A mixture of methyl 3-[(2S)-1-(difluoromethoxy)propan-2-yl]oxy-5-hydroxy-benzoate (0.25 g, 0.91 mmol), 5-chloro-N,N-dimethyl-pyrazine-2-carboxamide (168 mg, 0.91 mmol) and potassium carbonate (250 mg, 1.81 mmol) in acetonitrile (5 mL) was stirred in a microwave reactor at 140° C. for 5 hours. The mixture was reduced in vacuo and ethyl acetate (50 mL) added. The mixture was washed with water (50 mL), brine (50 mL), dried (MgSO4) and reduced in vacuo. The residue was chromatographed on silica, eluting with 20 to 70% ethyl acetate in isohexane, to give the desired compound (0.3 g).

후처리

  1. additionadded
  2. washThe mixture was washed with water (50 mL), brine (50 mL)
  3. dry with materialdried (MgSO4)
  4. customThe residue was chromatographed on silica
  5. washeluting with 20 to 70% ethyl acetate in isohexane

출처 및 근거

ORD 기록
ord-cda55d57533d46beabe7dfc3092e7f9e
출처 데이터셋
uspto-grants-2010_03
특허 번호
US07671060B2

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