Ethyl Acetate → 4-(2-{(1S,2R)-2-[1-(3-isopropyl-1,2,4-oxadiazol-5-yl)piperidin-4-yl]cyclopropyl}ethoxy)aniline

HRID 1850737노트

반응식

HRID 1850737 반응식
[CH:1]([C:4]1[N:8]=[C:7]([N:9]2[CH2:14][CH2:13][CH:12]([C@H:15]3[CH2:17][C@H:16]3[CH2:18][CH2:19][O:20][C:21]3[CH:26]=[CH:25][C:24]([N+:27]([O-])=O)=[CH:23][CH:22]=3)[CH2:11][CH2:10]2)[O:6][N:5]=1)([CH3:3])[CH3:2].O.O.[Sn](Cl)Cl.C(OCC)(=O)C>CN(C=O)C>[CH:1]([C:4]1[N:8]=[C:7]([N:9]2[CH2:14][CH2:13][CH:12]([C@H:15]3[CH2:17][C@H:16]3[CH2:18][CH2:19][O:20][C:21]3[CH:26]=[CH:25][C:24]([NH2:27])=[CH:23][CH:22]=3)[CH2:11][CH2:10]2)[O:6][N:5]=1)([CH3:3])[CH3:2]

참가 물질

5

반응물 3

HCID 8857Ethyl AcetateHCID 61436Stannous chloride dihydrateHCID 867111861-(3-isopropyl-1,2,4-oxadiazol-5-yl)-4-{(1R,2S)-2-[2-(4-nitrophenoxy)ethyl]cyclopropyl}piperidine

생성물 1

HCID 867111874-(2-{(1S,2R)-2-[1-(3-isopropyl-1,2,4-oxadiazol-5-yl)piperidin-4-yl]cyclopropyl}ethoxy)aniline

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a solution of 1-(3-isopropyl-1,2,4-oxadiazol-5-yl)-4-{(1R,2S)-2-[2-(4-nitrophenoxy)ethyl]cyclopropyl}piperidine (353 mg, 0.881 mmol) in DMF (5 ml) was added at tin(II) chloride dihydrate (994 mg, 4.41 mmol) and the resulting mixture stirred at room temperature for 2 hours, then heated to 50° C. for 13 hours. Ethyl acetate (50 mL) was added and the solution washed with saturated aqueous sodium hydrogen carbonate followed by brine. The organic layer was dried over sodium sulfate, filtered, and the solvent was evaporated under reduced pressure (328 mg). The residue was purified by flash chromatography on silica gel using a 25 g column, eluting with 1 column volume of DCM, followed by a linear gradient of ethyl acetate in DCM from 0% to 100% over 15 column volumes, to afford the title compound. LCMS: retention 0.79 min/2.0 minute run: (ESI) m/z 371 [M+H]+.

후처리

  1. temperatureheated to 50° C. for 13 hours
  2. washthe solution washed with saturated aqueous sodium hydrogen carbonate
  3. dry with materialThe organic layer was dried over sodium sulfate
  4. filtrationfiltered
  5. customthe solvent was evaporated under reduced pressure (328 mg)
  6. customThe residue was purified by flash chromatography on silica gel using a 25 g column
  7. washeluting with 1 column volume of DCM

출처 및 근거

ORD 기록
ord-8452e854d8864bbb87d7a90f13f155d6
출처 데이터셋
uspto-grants-2015_02
특허 번호
US08957062B2

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