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Hydrochloric Acid → tert-butyl [(4-fluoro-5-(2-fluoropyridin-3-yl)-1-{[5-(hydroxymethyl)-2-furyl]sulfonyl}-1H-pyrrol-3-yl)methyl]methylcarbamate

HRID 1426736
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1426736
[C:1]([O:5][C:6]([N:8]([CH2:10][C:11]1[C:12]([F:35])=[C:13]([C:28]2[C:29]([F:34])=[N:30][CH:31]=[CH:32][CH:33]=2)[N:14]([S:16]([C:19]2[O:23][C:22]([C:24](OC)=[O:25])=[CH:21][CH:20]=2)(=[O:18])=[O:17])[CH:15]=1)[CH3:9])=[O:7])([CH3:4])([CH3:3])[CH3:2].[H-].C([Al+]CC(C)C)C(C)C.Cl>O1CCCC1.C1(C)C=CC=CC=1>[F:35][C:12]1[C:11]([CH2:10][N:8]([CH3:9])[C:6](=[O:7])[O:5][C:1]([CH3:2])([CH3:3])[CH3:4])=[CH:15][N:14]([S:16]([C:19]2[O:23][C:22]([CH2:24][OH:25])=[CH:21][CH:20]=2)(=[O:17])=[O:18])[C:13]=1[C:28]1[C:29]([F:34])=[N:30][CH:31]=[CH:32][CH:33]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 313Hydrochloric AcidHCID 21225700DiisobutylaluminumhydrideHCID 67395998Methyl 5-{[4-{[(tert-butoxycarbonyl)(methyl)amino]methyl}-3-fluoro-2-(2-fluoropyridin-3-yl)-1H-pyrrol-1-yl]sulfonyl}-2-furoate

Produkt 1

HCID 67398835tert-butyl [(4-fluoro-5-(2-fluoropyridin-3-yl)-1-{[5-(hydroxymethyl)-2-furyl]sulfonyl}-1H-pyrrol-3-yl)methyl]methylcarbamateAusbeute 72,5 %

Reagenzien, Katalysatoren, Lösungsmittel

2
HCID 1140TolueneLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of methyl 5-{[4-{[(tert-butoxycarbonyl)(methyl)amino]methyl}-3-fluoro-2-(2-fluoropyridin-3-yl)-1H-pyrrol-1-yl]sulfonyl}-2-furoate (825 mg) in tetrahydrofuran (8 mL) was added dropwise a 1.5 mol/L solution (5.38 mL) of diisobutylaluminum hydride in toluene under ice-cooling and the mixture was stirred for 1 hr. Hydrochloric acid was added to the reaction mixture and the mixture was further stirred for 1 hr and extracted with ethyl acetate. The separated aqueous layer was extracted again with ethyl acetate. The combined organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=4:1→1:2) to give the title compound as a colorless oil (yield 565 mg, 53%).

Aufarbeitung

  1. temperaturecooling
  2. stirringthe mixture was further stirred for 1 hr
  3. extractionextracted with ethyl acetate
  4. extractionThe separated aqueous layer was extracted again with ethyl acetate
  5. washThe combined organic layer was washed with saturated brine
  6. dry with materialdried over anhydrous magnesium sulfate
  7. concentrationconcentrated under reduced pressure
  8. customThe residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=4:1→1:2)

Quellen und Nachweise

ORD-Eintrag
ord-0ceecf8d1d1540a5bb26ba791db74031
Quelldatensatz
uspto-grants-2015_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08933105B2

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