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Hydrogen Peroxide → dibenzyl 3,3-difluoro-1-((2-methoxy-4-(2-oxo-3-(4-(trifluoromethoxy)phenylthio)pyrazin-1(2H)-yl)phenoxy)methyl)cyclobutyl phosphate

HRID 562593
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HRID 562593 반응식
C(N(C(C)C)[P:5]([O:14][CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[O:6][CH2:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)(C)C.[F:25][C:26]1([F:60])[CH2:29][C:28]([CH2:31][O:32][C:33]2[CH:38]=[CH:37][C:36]([N:39]3[CH:44]=[CH:43][N:42]=[C:41]([S:45][C:46]4[CH:51]=[CH:50][C:49]([O:52][C:53]([F:56])([F:55])[F:54])=[CH:48][CH:47]=4)[C:40]3=[O:57])=[CH:35][C:34]=2[O:58][CH3:59])([OH:30])[CH2:27]1.N1C=NC=N1.[OH:66]O>ClCCCl.O.S([O-])([O-])(=O)=S.[Na+].[Na+]>[P:5]([O:30][C:28]1([CH2:31][O:32][C:33]2[CH:38]=[CH:37][C:36]([N:39]3[CH:44]=[CH:43][N:42]=[C:41]([S:45][C:46]4[CH:47]=[CH:48][C:49]([O:52][C:53]([F:55])([F:54])[F:56])=[CH:50][CH:51]=4)[C:40]3=[O:57])=[CH:35][C:34]=2[O:58][CH3:59])[CH2:29][C:26]([F:25])([F:60])[CH2:27]1)([O:6][CH2:7][C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1)([O:14][CH2:15][C:16]1[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1)=[O:66]
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참가 물질

8

반응물 4

HCID 784Hydrogen PeroxideHCID 92571H-1,2,4-TriazoleHCID 196621Bis(benzyloxy)(diisopropylamino)phosphineHCID 575405201-(4-((3,3-difluoro-1-hydroxycyclobutyl)methoxy)-3-methoxyphenyl)-3-(4-(trifluoromethoxy)phenylthio)pyrazin-2(1H)-one

생성물 1

HCID 57540648dibenzyl 3,3-difluoro-1-((2-methoxy-4-(2-oxo-3-(4-(trifluoromethoxy)phenylthio)pyrazin-1(2H)-yl)phenoxy)methyl)cyclobutyl phosphate
수율 77%

시약·촉매·용매 3

HCID 111,2-Dichloroethane용매HCID 962Water용매HCID 24477Sodium Thiosulfate용매

실험 절차

To a mixture of dibenzyl diisopropylphosphoramidite (135 mg, 0.390 mmol), 1-(4-((3,3-difluoro-1-hydroxycyclobutyl)methoxy)-3-methoxyphenyl)-3-(4-(trifluoromethoxy)phenylthio)pyrazin-2(1H)-one (Example 75) (69 mg, 0.130 mmol) and 1H-1,2,4-triazole (27.0 mg, 0.390 mmol) in DCE (20 mL) was stirred at reflux for 6 hours. The mixture was cooled to RT. 30% hydrogen peroxide in water (10 ml) was slowly added and the mixture was stirred at RT for 30 min. The mixture was diluted with a solution of aqueous 10% sodium thiosulfate (40 ml) and was extracted with DCM (50 ml). The DCM layer was dried over sodium sulfate and concentrated. The crude product was purified by ISCO silica gel Column (40 g) and the product was eluted with hexane to 100% ethyl acetate in 10 min. Yield dibenzyl 3,3-difluoro-1-((2-methoxy-4-(2-oxo-3-(4-(trifluoromethoxy)phenylthio)pyrazin-1(2H)-yl)phenoxy)methyl)cyclobutyl phosphate (79 mg, 0.100 mmol, 77% yield) as off-white solid. 1H NMR (400 MHz, chloroform-d) δ ppm 7.57-7.66 (2H, m), 7.27-7.39 (12H, m), 7.13 (1H, d, J=4.53 Hz), 6.81-7.00 (4H, m), 4.97-5.14 (4H, m), 4.29 (2H, s), 3.75 (3H, s), 2.93-3.20 (4H, m).

후처리

  1. temperatureat reflux for 6 hours
  2. stirringthe mixture was stirred at RT for 30 min
  3. extractionwas extracted with DCM (50 ml)
  4. dry with materialThe DCM layer was dried over sodium sulfate
  5. concentrationconcentrated
  6. customThe crude product was purified by ISCO silica gel Column (40 g)
  7. washthe product was eluted with hexane to 100% ethyl acetate in 10 min

출처 및 근거

ORD 기록
ord-74c62050b61e48cbbfe280586091e320
출처 데이터셋
uspto-grants-2011_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08067420B2

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