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Water → (S)-3-((S)-3-(4-(4-tert-butyl-3-isopropylbenzyloxy)phenyl)-3-(isoxazol-3-yl)propanoyl)-4-benzyloxazolidin-2-one

HRID 1675257
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HRID 1675257 반응식
C(=O)([O-])[O-].[Cs+].[Cs+].[CH2:7]([C@H:14]1[CH2:18][O:17][C:16](=[O:19])[N:15]1[C:20](=[O:35])[CH2:21][C@@H:22]([C:28]1[CH:33]=[CH:32][C:31]([OH:34])=[CH:30][CH:29]=1)[C:23]1[CH:27]=[CH:26][O:25][N:24]=1)[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1.[C:36]([C:40]1[CH:45]=[CH:44][C:43]([CH2:46]Cl)=[CH:42][C:41]=1[CH:48]([CH3:50])[CH3:49])([CH3:39])([CH3:38])[CH3:37].O>CN(C=O)C>[C:36]([C:40]1[CH:45]=[CH:44][C:43]([CH2:46][O:34][C:31]2[CH:32]=[CH:33][C:28]([C@@H:22]([C:23]3[CH:27]=[CH:26][O:25][N:24]=3)[CH2:21][C:20]([N:15]3[C@@H:14]([CH2:7][C:8]4[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=4)[CH2:18][O:17][C:16]3=[O:19])=[O:35])=[CH:29][CH:30]=2)=[CH:42][C:41]=1[CH:48]([CH3:50])[CH3:49])([CH3:39])([CH3:38])[CH3:37]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 962WaterHCID 10796Cesium carbonateHCID 57801829(S)-4-Benzyl-3-((S)-3-(4-hydroxyphenyl)-3-(isoxazol-3-yl)propanoyl)oxazolidin-2-oneHCID 593006801-tert-Butyl-4-(chloromethyl)-2-isopropylbenzene

생성물 1

HCID 67331034(S)-3-((S)-3-(4-(4-tert-butyl-3-isopropylbenzyloxy)phenyl)-3-(isoxazol-3-yl)propanoyl)-4-benzyloxazolidin-2-one수율 31%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

Cesium carbonate (360 mg, 1.1 mmol) was added to a mixture of 7.5 (40.0 mg, 0.10 mmol) and 26.5 (27.0 mg, 0.12 mmol) in DMF (2.0 mL). The resulting mixture was stirred at room temperature for 19 hours. The mixture was then treated with water (5 mL) and extracted with EtOAc (15 mL). The organic layer was separated, washed twice with brine, dried over MgSO4, and concentrated in vacuo. The crude product was purified by flash chromatography on silica gel (0-30% EtOAc/hexane) to give (S)-3-((S)-3-(4-(4-tert-butyl-3-isopropylbenzyloxy)phenyl)-3-(isoxazol-3-yl)propanoyl)-4-benzyloxazolidin-2-one (18.0 mg, 30%) as a clear oil. The ester (18.0 mg, 0.031 mmol) was treated with THF/H2O (3/1, v/v, 2.0 mL) and hydrogen peroxide (30%, 0.021 mL, 0.19 mmol) and cooled to 0° C. LiOH (2.60 mg, 0.062 mmol) was added. The resulting mixture was stirred at 0° C. for 1 hour. A saturated solution of Na2SO3 was added to the mixture, and the reaction was stirred for 1 hour. The mixture was extracted with EtOAc (10 mL), dried over MgSO4, and concentrated in vacuo. The residue was purified by flash chromatography on silica gel (0-30% EtOAc/hexane) to give 26 (5.80 mg, 44%) as a colorless film. MS ESI (neg.) m/e: 420 (M−H). 1H NMR (500 MHz) (CDCl3) δ 8.28 (1H, s); 7.37-7.34 (2H, m); 7.20-7.17 (3H, m); 6.96-6.94 (2H, d, J=8.2Hz); 6.07 (1H, s); 4.98 (2H, s); 4.56 (1H, dd, J=7.8, 7.4 Hz); 3.64 (1H, m), 2.36 (1H, dd, J=16.8, 7.8 Hz), 2.99 (1H, dd, J=16.8, 7.4Hz), 1.43 (9H, s), 1.26 (6H, d, J=7.1Hz).

후처리

  1. extractionextracted with EtOAc (15 mL)
  2. customThe organic layer was separated
  3. washwashed twice with brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated in vacuo
  6. customThe crude product was purified by flash chromatography on silica gel (0-30% EtOAc/hexane)

출처 및 근거

ORD 기록
ord-597017a4f3a84e5e810d74a7bdafc61d
출처 데이터셋
uspto-grants-2011_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08003648B2

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