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3-Iodophenol → (E)-tert-butyl 4-(4-(5-(3-hydroxystyryl)pyrazin-2-ylamino)phenylsulfonyl)piperazine-1-carboxylate

HRID 709310
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HRID 709310 반응식
[CH:1]([C:3]1[N:4]=[CH:5][C:6]([NH:9][C:10]2[CH:15]=[CH:14][C:13]([S:16]([N:19]3[CH2:24][CH2:23][N:22]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:21][CH2:20]3)(=[O:18])=[O:17])=[CH:12][CH:11]=2)=[N:7][CH:8]=1)=[CH2:2].I[C:33]1[CH:34]=[C:35]([OH:39])[CH:36]=[CH:37][CH:38]=1.C1(C)C=CC(P(C2C=CC(C)=CC=2)C2C=CC(C)=CC=2)=CC=1.CCN(C(C)C)C(C)C>CN(C=O)C.CC([O-])=O.CC([O-])=O.[Pd+2]>[OH:39][C:35]1[CH:34]=[C:33]([CH:38]=[CH:37][CH:36]=1)/[CH:2]=[CH:1]/[C:3]1[N:4]=[CH:5][C:6]([NH:9][C:10]2[CH:15]=[CH:14][C:13]([S:16]([N:19]3[CH2:20][CH2:21][N:22]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:23][CH2:24]3)(=[O:18])=[O:17])=[CH:12][CH:11]=2)=[N:7][CH:8]=1
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참가 물질

7

반응물 4

HCID 122723-IodophenolHCID 13956Phosphine, tris(4-methylphenyl)-HCID 81531DiisopropylethylamineHCID 67324584Tert-butyl 4-(4-(5-vinylpyrazin-2-ylamino)phenylsulfonyl)piperazine-1-carboxylate

생성물 1

HCID 67325688(E)-tert-butyl 4-(4-(5-(3-hydroxystyryl)pyrazin-2-ylamino)phenylsulfonyl)piperazine-1-carboxylate수율 78.5%

시약·촉매·용매 2

HCID 167845palladium(II) acetate촉매HCID 6228Dimethylformamide용매

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온도
120 °C

실험 절차

A mixture of tert-butyl 4-(4-(5-vinylpyrazin-2-ylamino)phenylsulfonyl)piperazine-1-carboxylate (40 mg, 0.09 mmol), 3-iodophenol (19 mg, 0.09 mmol), Pd(OAc)2 (1.2 mg, 0.005 mmol), tri-p-tolylphosphine (2.5 mg, 0.008 mmol), and DIEA (31 μL, 0.18 mmol) in DMF (3 ml) was heated at 120° C. for 18 h after which, it was filtered with a pad of celite and partitioned between ethyl acetate and water. The organic layer was separated and the aqueous layer was extracted with ethyl acetate. The combined organic extracts were washed with brine, dried over MgSO4, celite filtered and concentrated under reduced pressure. The crude product was purified by flash chromatography using (20% to 40% Ethyl acetate/Hexane) as a solvent to afford title compound (38 mg, 78% yield). MS m/z: 538 [M+1].

후처리

  1. filtrationwas filtered with a pad of celite
  2. custompartitioned between ethyl acetate and water
  3. customThe organic layer was separated
  4. extractionthe aqueous layer was extracted with ethyl acetate
  5. washThe combined organic extracts were washed with brine
  6. dry with materialdried over MgSO4, celite
  7. filtrationfiltered
  8. concentrationconcentrated under reduced pressure
  9. customThe crude product was purified by flash chromatography

출처 및 근거

ORD 기록
ord-4c6951e557ba4a1cb8027db3defda424
출처 데이터셋
uspto-grants-2015_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09180127B2

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