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Dimethyl Sulfoxide → (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-{[3-bromo-6-(3,3-difluoroazetidin-1-yl)pyridin-2-yl]methyl}-4-methyl-1,3-oxazolidin-2-one

HRID 1508508
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HRID 1508508 반응식
[F:1][C:2]([F:30])([F:29])[C:3]1[CH:4]=[C:5]([C@H:13]2[O:17][C:16](=[O:18])[N:15]([CH2:19][C:20]3[C:25]([Br:26])=[CH:24][CH:23]=[C:22](Cl)[N:21]=3)[C@H:14]2[CH3:28])[CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1.Cl.[F:32][C:33]1([F:37])[CH2:36][NH:35][CH2:34]1.C(=O)(O)[O-].[Na+].CS(C)=O>CCOC(C)=O>[F:1][C:2]([F:30])([F:29])[C:3]1[CH:4]=[C:5]([C@H:13]2[O:17][C:16](=[O:18])[N:15]([CH2:19][C:20]3[C:25]([Br:26])=[CH:24][CH:23]=[C:22]([N:35]4[CH2:36][C:33]([F:37])([F:32])[CH2:34]4)[N:21]=3)[C@H:14]2[CH3:28])[CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1
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참가 물질

6

반응물 4

HCID 679Dimethyl SulfoxideHCID 516892Sodium BicarbonateHCID 27582473,3-Difluoroazetidine hydrochlorideHCID 57576268(4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-[(3-bromo-6-chloropyridin-2-yl)methyl]-4-methyl-1,3-oxazolidin-2-one

생성물 1

HCID 86704600(4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-{[3-bromo-6-(3,3-difluoroazetidin-1-yl)pyridin-2-yl]methyl}-4-methyl-1,3-oxazolidin-2-one

시약·촉매·용매 1

HCID 8857Ethyl Acetate용매

반응 조건

온도
150 °C

실험 절차

A reaction vessel was charged with (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-[(3-bromo-6-chloropyridin-2-yl)methyl]-4-methyl-1,3-oxazolidin-2-one (50 mg, 0.097 mmol), 3,3-difluoroazetidine hydrochloride (125 mg, 0.966 mmol) and sodium bicarbonate (162 mg, 1.932 mmol). DMSO (2 mL) was added. The reaction was heated to 150° C. under an atmosphere of N2. After 16 hours, the reaction was cooled to r.t., diluted with EtOAc (40 mL), and washed with water and brine (10 mL each). The organic layer was dried over Na2SO4, filtered, and concentrated. Purification of the residue by flash chromatography on silica gel with 0 to 80% EtOAc/hexanes afforded (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-{[3-bromo-6-(3,3-difluoroazetidin-1-yl)pyridin-2-yl]methyl}-4-methyl-1,3-oxazolidin-2-one contaminated with a minor impurity. This material was used in subsequent reactions without further purification. LCMS=575.9 (M+H)+ 1H NMR (CDCl3, 500 MHz) δ 7.89 (s, 1H), 7.78 (s, 2H), 7.63 (d, J=8.7 Hz, 1H), 6.24 (d, J=8.7 Hz, 1H), 5.75 (d, J=8.4 Hz, 1H), 4.87 (d, J=17.1 Hz, 1H), 4.23-4.40 (m, 6H), 0.79 (d, J=7.6 Hz, 3H).

후처리

  1. temperaturethe reaction was cooled to r.t.
  2. washwashed with water and brine (10 mL each)
  3. dry with materialThe organic layer was dried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customPurification of the residue by flash chromatography on silica gel with 0 to 80% EtOAc/hexanes

출처 및 근거

ORD 기록
ord-f806013c689c4891922dec211e408132
출처 데이터셋
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09221834B2

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