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Water → 1-tert-butyl 2-methyl (2S,4R)-4-[(6-bromo-2-phenylquinolin-4-yl)oxy]pyrrolidine-1,2-dicarboxylate

HRID 1360109
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HRID 1360109 반응식
BrC1C=CC(S([O:11][C@@H:12]2[CH2:16][N:15]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[C@H:14]([C:24]([O:26][CH3:27])=[O:25])[CH2:13]2)(=O)=O)=CC=1.[Br:28][C:29]1[CH:30]=[C:31]2[C:36](=[CH:37][CH:38]=1)[NH:35][C:34]([C:39]1[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=1)=[CH:33][C:32]2=O.C(=O)([O-])[O-].[Cs+].[Cs+].O>CN1CCCC1>[Br:28][C:29]1[CH:30]=[C:31]2[C:36](=[CH:37][CH:38]=1)[N:35]=[C:34]([C:39]1[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=1)[CH:33]=[C:32]2[O:11][C@H:12]1[CH2:16][N:15]([C:17]([O:19][C:20]([CH3:21])([CH3:22])[CH3:23])=[O:18])[C@H:14]([C:24]([O:26][CH3:27])=[O:25])[CH2:13]1
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6

반응물 4

HCID 962WaterHCID 10796Cesium carbonateHCID 137916446-Bromo-2-phenylquinolin-4(1H)-oneHCID 565904841-(tert-Butyl) 2-methyl (2S,4S)-4-(((4-bromophenyl)sulfonyl)oxy)pyrrolidine-1,2-dicarboxylate

생성물 1

HCID 576171101-tert-butyl 2-methyl (2S,4R)-4-[(6-bromo-2-phenylquinolin-4-yl)oxy]pyrrolidine-1,2-dicarboxylate수율 62.2%

시약·촉매·용매 1

HCID 84541-Methylpyrrolidine용매

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온도
45 °C

실험 절차

To a solution of 1-tert-butyl 2-methyl (2S,4S)-4-{[(4-bromophenyl)sulfonyl]oxy}pyrrolidine-1,2-dicarboxylate 23 (14.0 g, 30.2 mmol) and 6-bromo-2-phenylquinolin-4(1H)-one (1, 9.5 g, 31.7 mmol) in N-methylpyrrolidine (100 mL) was added cesium carbonate (14.7 g, 45.2 mmol). The reaction mixture was heated to 45° C. and stirred for 5 h and cooled. The reaction mixture was poured onto EtOAc and water and the white solids were removed by filtration. The layers were separated and the organic was washed with saturated aqueous NaHCO3, water and brine, dried over Na2SO4, filtered and concentrated. The residue was purified on silica gel (gradient elution 5% to 45% EtOAc in hexanes) to give 1-tert-butyl 2-methyl (2S,4R)-4-[(6-bromo-2-phenylquinolin-4-yl)oxy]pyrrolidine-1,2-dicarboxylate 24 (9.9 g, 62% yield) as a pale yellow solid. LRMS (M+H)+ Calcd.: 527. found 527.

후처리

  1. temperaturecooled
  2. customthe white solids were removed by filtration
  3. customThe layers were separated
  4. washthe organic was washed with saturated aqueous NaHCO3, water and brine
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe residue was purified on silica gel (gradient elution 5% to 45% EtOAc in hexanes)

출처 및 근거

ORD 기록
ord-d4eac330bbec4b09af3bff535f037c73
출처 데이터셋
uspto-grants-2011_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07879797B2

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