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Diethyl Ether → 4-{4-(4-Fluorophenyl)-1-[1-(isoxazol-3-ylmethyl)piperidin-4-yl]-1H-imidazol-5-yl}-N-methylpyrimidin-2-amine

HRID 1896648
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HRID 1896648 반응식
C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].[F:15][C:16]1[CH:21]=[CH:20][C:19]([C:22]2[N:23]=[CH:24][N:25]([CH:35]3[CH2:40][CH2:39][NH:38][CH2:37][CH2:36]3)[C:26]=2[C:27]2[CH:32]=[CH:31][N:30]=[C:29]([NH:33][CH3:34])[N:28]=2)=[CH:18][CH:17]=1.[O:41]1[CH:45]=[CH:44][C:43]([CH:46]=O)=[N:42]1.C(OCC)C>C1COCC1>[F:15][C:16]1[CH:17]=[CH:18][C:19]([C:22]2[N:23]=[CH:24][N:25]([CH:35]3[CH2:40][CH2:39][N:38]([CH2:46][C:43]4[CH:44]=[CH:45][O:41][N:42]=4)[CH2:37][CH2:36]3)[C:26]=2[C:27]2[CH:32]=[CH:31][N:30]=[C:29]([NH:33][CH3:34])[N:28]=2)=[CH:20][CH:21]=1
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반응물 4

HCID 3283Diethyl EtherHCID 5049666Sodium triacetoxyborohydrideHCID 99284384-[4-(4-fluorophenyl)-1-piperidin-4-yl-1H-imidazol-5-yl]-N-methylpyrimidin-2-amineHCID 183730781,2-Oxazole-3-carbaldehyde

생성물 1

HCID 582351384-{4-(4-Fluorophenyl)-1-[1-(isoxazol-3-ylmethyl)piperidin-4-yl]-1H-imidazol-5-yl}-N-methylpyrimidin-2-amine

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

Sodium triacetoxyborohydride (135 mg, 0.637 mmol) was added to a solution of 4-[4-(4-fluorophenyl)-1-piperidin-4-yl-1H-imidazol-5-yl]-N-methylpyrimidin-2-amine (C8) (150 mg, 0.426 mmol) and isoxazole-3-carbaldehyde (49.6 mg, 0.511 mmol) in THF (10 mL). After 90 minutes at room temperature, the reaction was concentrated in vacuo and partitioned between saturated aqueous sodium bicarbonate solution and ethyl acetate. The aqueous layer was extracted with ethyl acetate, and the combined organic layers were washed with saturated aqueous sodium chloride solution, dried over magnesium sulfate, filtered, and concentrated under reduced pressure to provide a thick oil. Purification via silica gel chromatography (Eluants: ethyl acetate followed by 10% methanol in ethyl acetate) provided a viscous oil, which was reconcentrated from diethyl ether to afford the product as a white solid. Yield: 77 mg, 0.18 mmol, 42%. LCMS m/z 434.6 (M+1). 1H NMR (400 MHz, CDCl3) δ 1.99-2.09 (m, 2H), 2.16-2.22 (m, 4H), 3.03 (m, 2H), 3.05 (d, J=5.1 Hz, 3H), 3.69 (s, 2H), 4.67 (br m, 1H), 5.17 (m, 1H), 6.41 (d, J=5.1 Hz, 1H), 6.41 (d, J=1.7 Hz, 1H), 7.00 (dd, J=8.7, 8.7 Hz, 2H), 7.46 (dd, J=8.7, 5.4 Hz, 2H), 7.77 (s, 1H), 8.16 (br d, J=4.5 Hz, 1H), 8.40 (d, J=1.6 Hz, 1H).

후처리

  1. concentrationthe reaction was concentrated in vacuo
  2. custompartitioned between saturated aqueous sodium bicarbonate solution and ethyl acetate
  3. extractionThe aqueous layer was extracted with ethyl acetate
  4. washthe combined organic layers were washed with saturated aqueous sodium chloride solution
  5. dry with materialdried over magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customto provide a thick oil
  9. customPurification via silica gel chromatography (Eluants: ethyl acetate followed by 10% methanol in ethyl acetate)
  10. customprovided a viscous oil, which

출처 및 근거

ORD 기록
ord-adb52423cb6c4540949c9517f69b5184
출처 데이터셋
uspto-grants-2013_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08518944B2

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