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Benzyl 1-(benzoylcarbamothioyl)-6a-(5-bromo-2-fluoro-phenyl)-3,3a,4,6-tetrahydropyrrolo[3,4-c]isoxazole-5-carboxylate → Benzyl 3-(benzoylcarbamothioylamino)-3-(5-bromo-2-fluoro-phenyl)-4-(hydroxymethyl)pyrrolidine-1-carboxylate

HRID 876724
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 876724
[C:1]([NH:9][C:10]([N:12]1[C:16]2([C:30]3[CH:35]=[C:34]([Br:36])[CH:33]=[CH:32][C:31]=3[F:37])[CH2:17][N:18]([C:20]([O:22][CH2:23][C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=3)=[O:21])[CH2:19][CH:15]2[CH2:14][O:13]1)=[S:11])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>C(O)(=O)C.C(OCC)(=O)C.[Zn]>[C:1]([NH:9][C:10]([NH:12][C:16]1([C:30]2[CH:35]=[C:34]([Br:36])[CH:33]=[CH:32][C:31]=2[F:37])[CH:15]([CH2:14][OH:13])[CH2:19][N:18]([C:20]([O:22][CH2:23][C:24]2[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=2)=[O:21])[CH2:17]1)=[S:11])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
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Komponenten

5

Edukt 1

HCID 86762753Benzyl 1-(benzoylcarbamothioyl)-6a-(5-bromo-2-fluoro-phenyl)-3,3a,4,6-tetrahydropyrrolo[3,4-c]isoxazole-5-carboxylate

Produkt 1

HCID 86762756Benzyl 3-(benzoylcarbamothioylamino)-3-(5-bromo-2-fluoro-phenyl)-4-(hydroxymethyl)pyrrolidine-1-carboxylateAusbeute 86 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 23994ZincKatalysatorHCID 176Acetic AcidLösungsmittel
HCID 8857
Ethyl Acetate
Lösungsmittel

Versuchsvorschrift

A mixture of benzyl 1-(benzoylcarbamothioyl)-6a-(5-bromo-2-fluoro-phenyl)-3,3a,4,6-tetrahydropyrrolo[3,4-c]isoxazole-5-carboxylate (6.05 g 10.4 mmol) and zinc (dust, <10 micron) (6.77 g, 103.5 mmol) is stirred in acetic acid (52 mL) at room temperature overnight under nitrogen. The reaction is diluted with ethyl acetate and filtered through diatomaceous earth. The solvent is removed in vacuo and the residue is diluted with ethyl acetate, water and saturated aqueous sodium bicarbonate. The mixture is extracted with ethyl acetate (3×), the combined organic layers are combined and dried over sodium sulfate, filtered and the solvent removed in vacuo. The crude product is purified over silica gel with a 30 minute 5% to 100% EtOAc in hexanes gradient to give the title compound (5.222 g, 86%). ES/MS (m/e): (79Br/81Br) 586/588 (M+H).

Aufarbeitung

  1. filtrationfiltered through diatomaceous earth
  2. customThe solvent is removed in vacuo
  3. additionthe residue is diluted with ethyl acetate, water and saturated aqueous sodium bicarbonate
  4. extractionThe mixture is extracted with ethyl acetate (3×)
  5. dry with materialdried over sodium sulfate
  6. filtrationfiltered
  7. customthe solvent removed in vacuo
  8. customThe crude product is purified over silica gel with a 30 minute 5% to 100% EtOAc in hexanes gradient

Quellen und Nachweise

ORD-Eintrag
ord-f2983e40b7124b559f7dd20f63d9d474
Quelldatensatz
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08987254B2

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