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Butyryl chloride → N-(4-(5-((1R,2R)-2-(tert-Butyldimethylsilyloxy)-1-(3-chloro-4-cyano-2-methylphenylamino)propyl)-1,3,4-oxadiazol-2-yl)phenyl)butyramide

HRID 563338
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HRID 563338 반응식
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[O:12][C:11]([C@H:13]([NH:24][C:25]3[CH:32]=[CH:31][C:28]([C:29]#[N:30])=[C:27]([Cl:33])[C:26]=3[CH3:34])[C@H:14]([O:16][Si:17]([C:20]([CH3:23])([CH3:22])[CH3:21])([CH3:19])[CH3:18])[CH3:15])=[N:10][N:9]=2)=[CH:4][CH:3]=1.[C:35](Cl)(=[O:39])[CH2:36][CH2:37][CH3:38]>C(Cl)Cl.N1C=CC=CC=1>[Si:17]([O:16][C@H:14]([CH3:15])[C@H:13]([C:11]1[O:12][C:8]([C:5]2[CH:4]=[CH:3][C:2]([NH:1][C:35](=[O:39])[CH2:36][CH2:37][CH3:38])=[CH:7][CH:6]=2)=[N:9][N:10]=1)[NH:24][C:25]1[CH:32]=[CH:31][C:28]([C:29]#[N:30])=[C:27]([Cl:33])[C:26]=1[CH3:34])([C:20]([CH3:22])([CH3:23])[CH3:21])([CH3:19])[CH3:18]
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참가 물질

5

반응물 2

HCID 8855Butyryl chlorideHCID 591930604-((1R,2R)-1-(5-(4-Aminophenyl)-1,3,4-oxadiazol-2-yl)-2-(tert-butyldimethylsilyloxy)propylamino)-2-chloro-3-methylbenzonitrile2회

생성물 1

HCID 67006012N-(4-(5-((1R,2R)-2-(tert-Butyldimethylsilyloxy)-1-(3-chloro-4-cyano-2-methylphenylamino)propyl)-1,3,4-oxadiazol-2-yl)phenyl)butyramide수율 100%

시약·촉매·용매 2

HCID 1049Pyridine
용매
HCID 6344Dichloromethane용매

실험 절차

To a solution of 4-((1R,2R)-1-(5-(4-aminophenyl)-1,3,4-oxadiazol-2-yl)-2-(tert-butyldimethylsilyloxy)propylamino)-2-chloro-3-methylbenzonitrile (intermediate 69d) (308 mg, 0.62 mmol) in CH2Cl2 (10 mL) and pyridine (1.5 mL) was added butyrylchloride (90 μL, 0.87 mmol) at room temperature. The resultant solution stirred for 90 hours and quenched with 2N aq. HCl (15 mL). The mixture was further partitioned between H2O (40 mL) and CH2Cl2 (35 mL). The aqueous layer was extracted with CH2Cl2 (35 mL). The combined organic extracts were washed with sat. aq. NaHCO3 (2×45 mL), dried (Na2SO4), filtered and concentrated under reduced pressure to provide a colourless oil (352 mg, 100%): 1H NMR (400 MHz, d6-acetone, δ in ppm) 9.42 (s 1H), 7.93 (dm, J=8.8 Hz, 2H), 7.85 (dm, J=8.8 Hz, 2H), 7.51 (d, J=8.6 Hz, 1H), 6.94 (d, J=8.6 Hz, 1H), 5.74 (d, J=9.2 Hz, 1H), 5.03 (dd, J=6.5, 9.0 Hz, 1H), 4.66 (pentet, J=6.3 Hz, 1H), 2.38 (t, J=7.2 Hz, 2H), 2.35 (s, 3H), 1.70 (sextet, J=7.4 Hz, 2H), 1.44 (d, J=6.1 Hz, 3H), 0.95 (t, J=7.4 Hz, 3H), 0.81 (s, 9H), 0.09 (s, 3H), −0.01 (s, 3H).

후처리

  1. customquenched with 2N aq. HCl (15 mL)
  2. customThe mixture was further partitioned between H2O (40 mL) and CH2Cl2 (35 mL)
  3. extractionThe aqueous layer was extracted with CH2Cl2 (35 mL)
  4. washThe combined organic extracts were washed with sat. aq. NaHCO3 (2×45 mL)
  5. dry with materialdried (Na2SO4)
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure

출처 및 근거

ORD 기록
ord-c44e7a1c14f84b3c90c9a28b28b37385
출처 데이터셋
uspto-grants-2011_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08067448B2

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