Water → tert-butyl{[5-(3-cyano-2-fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate

HRID 2070507Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2070507
[F:1][C:2]1[C:7]([CH:8]=[N:9]O)=[CH:6][CH:5]=[CH:4][C:3]=1[C:11]1[N:15]([S:16]([C:19]2[CH:20]=[N:21][CH:22]=[CH:23][CH:24]=2)(=[O:18])=[O:17])[CH:14]=[C:13]([CH2:25][N:26]([CH3:34])[C:27](=[O:33])[O:28][C:29]([CH3:32])([CH3:31])[CH3:30])[CH:12]=1.C(N(CC)CC)C.CS(Cl)(=O)=O.O>O1CCCC1>[C:8]([C:7]1[C:2]([F:1])=[C:3]([C:11]2[N:15]([S:16]([C:19]3[CH:20]=[N:21][CH:22]=[CH:23][CH:24]=3)(=[O:17])=[O:18])[CH:14]=[C:13]([CH2:25][N:26]([CH3:34])[C:27](=[O:33])[O:28][C:29]([CH3:31])([CH3:32])[CH3:30])[CH:12]=2)[CH:4]=[CH:5][CH:6]=1)#[N:9]

Komponenten

6

Edukt 4

HCID 962WaterHCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 86631005tert-butyl {[5-{2-fluoro-3-[(hydroxyimino)methyl]phenyl}-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate

Produkt 1

HCID 66974580tert-butyl{[5-(3-cyano-2-fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamateAusbeute 73,4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

To a solution (5 mL) of tert-butyl {[5-{2-fluoro-3-[(hydroxyimino)methyl]phenyl}-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate (150 mg) in tetrahydrofuran were added triethylamine (93 mg) and methanesulfonyl chloride (84 mg) at room temperature. The reaction mixture was stirred at 70° C. for 8 hr, and cooled to room temperature. Water was added and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=8:1→3:1) to give the title compound as a pale-yellow oil (yield 106 mg, 73%).

Aufarbeitung

  1. temperaturecooled to room temperature
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe extract was washed with saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=8:1→3:1)

Quellen und Nachweise

ORD-Eintrag
ord-2d64fefcaab646d98b36428eab6b1a4a
Quelldatensatz
uspto-grants-2012_10
Patentnummer
US08299261B2

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