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Diethyl Ether → Benzyl 4-{(1R,2S)-2-[2-(2-tert-butoxy-2-oxoethyl-2,5-difluorophenoxy)ethyl]cyclopropyl}piperidine-1-carboxylate

HRID 1474714
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HRID 1474714 반응식
Br[C:2]1[C:29]([F:30])=[CH:28][C:5]([O:6][CH2:7][CH2:8][C@@H:9]2[CH2:11][C@@H:10]2[CH:12]2[CH2:17][CH2:16][N:15]([C:18]([O:20][CH2:21][C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=3)=[O:19])[CH2:14][CH2:13]2)=[C:4]([F:31])[CH:3]=1.[Cl-].[C:33]([O:37]C(=O)C[Zn+])([CH3:36])([CH3:35])[CH3:34].[CH2:42]([O:44]CC)[CH3:43].CC(C1C=C(C(C)C)C(C2C=CC=CC=2P(C2CCCCC2)C2CCCCC2)=C(C(C)C)C=1)C>C1COCC1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[C:33]([O:37][C:4]1([F:31])[C:3]([CH2:43][CH:42]=[O:44])=[CH:2][C:29]([F:30])=[CH:28][CH:5]1[O:6][CH2:7][CH2:8][C@@H:9]1[CH2:11][C@@H:10]1[CH:12]1[CH2:13][CH2:14][N:15]([C:18]([O:20][CH2:21][C:22]2[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=2)=[O:19])[CH2:16][CH2:17]1)([CH3:36])([CH3:35])[CH3:34]
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7

반응물 4

HCID 3283Diethyl EtherHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 70818516Benzyl 4-{(1R,2S)-2-[2-(4-bromo-2,5 difluorophenoxy)ethyl]cyclopropyl}piperidine-1-carboxylateHCID 178451183HCID 178451183, 화합물

생성물 1

HCID 117678479Benzyl 4-{(1R,2S)-2-[2-(2-tert-butoxy-2-oxoethyl-2,5-difluorophenoxy)ethyl]cyclopropyl}piperidine-1-carboxylate

시약·촉매·용매 2

HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 8028Tetrahydrofuran용매

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온도
65 °C

실험 절차

Benzyl 4-{(1R,2S)-2-[2-(4-bromo-2,5 difluorophenoxy)ethyl]cyclopropyl}piperidine-1-carboxylate (0.540 g, 1.09 mmol) in THF (5 ml) was added 0.5 M 2-tert-butoxy-2-oxoethylzinc chloride in diethyl ether (5.46 ml, 2.73 mmol), followed by Pd2(dba)3 (50 mg, 0.055 mmol) and 52 mg X-Phos. The vessel was evacuated and back filled with nitrogen (3×) and the mixture was heated at 65° C. overnight. Saturated ammonium chloride (10 ml) was added and the mixture extracted with EtOAc (15 ml). The organic layer was separated, dried over Na2SO4, and concentrated. The residue was purified by column chromatography on silica gel (Biotage SNAP column, 25 g) using a gradient 0-15% then 15% EtOAc in hexanes to afford the title compound. LC/MS (m/z): 552.4 (M+Na)+.

후처리

  1. customThe vessel was evacuated
  2. additionback filled with nitrogen (3×)
  3. additionSaturated ammonium chloride (10 ml) was added
  4. extractionthe mixture extracted with EtOAc (15 ml)
  5. customThe organic layer was separated
  6. dry with materialdried over Na2SO4
  7. concentrationconcentrated
  8. customThe residue was purified by column chromatography on silica gel (Biotage SNAP column, 25 g)

출처 및 근거

ORD 기록
ord-4cddd796ddf846608004cbbd855633d5
출처 데이터셋
uspto-grants-2015_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09018224B2

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