Isobutyl carbamate → HCID 21877961, 화합물

HRID 723860노트

반응식

HRID 723860 반응식
[S:1]1[CH2:6][CH:5]=[C:4]([C:7]2[C:12]([F:13])=[CH:11][C:10]([NH2:14])=[CH:9][C:8]=2[F:15])[CH2:3][CH2:2]1.C(=O)(O)[O-].[Na+].[C:21](=[O:28])([O:23][CH2:24][CH:25]([CH3:27])[CH3:26])N>C1COCC1.O>[CH2:24]([O:23][C:21](=[O:28])[NH:14][C:10]1[CH:9]=[C:8]([F:15])[C:7]([C:4]2[CH2:5][CH2:6][S:1][CH2:2][CH:3]=2)=[C:12]([F:13])[CH:11]=1)[CH:25]([CH3:27])[CH3:26]

참가 물질

5

반응물 3

HCID 10973Isobutyl carbamateHCID 516892Sodium BicarbonateHCID 21876582HCID 21876582, 화합물

생성물 1

HCID 21877961HCID 21877961, 화합물

시약·촉매·용매 1

HCID 21881883Oxolane--water (1/1)용매

실험 절차

To a stirred, biphasic mixture of 4-(3,6-dihydro-2H-thiopyran-4-yl)-3,5-difluorobenzenamine (Step 4, 3.90 g, 17.2 mmol) in THF/water (2:1, 103 mL) is added sodium bicarbonate (2.88 g, 34.3 mmol) followed by isobutyl carbamate (2.45 mL, 18.9 mmol) dropwise. The reaction mixture is stirred at ambient temperature for 7 h and is then concentrated under reduced pressure, diluted with EtOAc (100 mL) and H2O (50 mL), and the layers are separated. The organic phase is washed with H2O (25 mL) and saline (25 mL), dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. Purification of the residue by chromatography on a Biotage Flash 40M 90 g silica gel cartridge, eluting with 5–10% EtOAc/Hexanes, affords the title compound, mp 136–137° C.; MS (ESI−) for C16H19F2NO2S m/z 326 (M−H)−.

후처리

  1. concentrationis then concentrated under reduced pressure
  2. additiondiluted with EtOAc (100 mL) and H2O (50 mL)
  3. customthe layers are separated
  4. washThe organic phase is washed with H2O (25 mL) and saline (25 mL)
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customPurification of the residue by chromatography on a Biotage Flash 40M 90 g silica gel cartridge
  8. washeluting with 5–10% EtOAc/Hexanes

출처 및 근거

ORD 기록
ord-e0d3ce908e63456db8fdb810e6cedc53
출처 데이터셋
uspto-grants-2006_11
특허 번호
US07141588B2

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