Bromide ion → (1S,2S)-1-((2R,4R)-4-(allyloxy)-1-benzhydrylpyrrolidin-2-yl)-2-amino-3-(3,5-difluorophenyl)propan-1-ol

HRID 20935Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 20935
[F:1][C:2]1[CH:3]=[C:4]([CH:34]=[C:35]([F:37])[CH:36]=1)[CH2:5][C@H:6]1[C@@H:10]([C@H:11]2[CH2:15][C@@H:14]([O:16][CH2:17][CH:18]=[CH2:19])[CH2:13][N:12]2[CH:20]([C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)[C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)[O:9]C(=O)[NH:7]1.FC1C=C(C=C(F)C=1)C[C@H]1[C@@H]([C@H]2C[C@@H](OCC=C)CN2)OC(=O)N1.[Br-].C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[CH2:17]([O:16][C@H:14]1[CH2:13][N:12]([CH:20]([C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)[C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)[C@@H:11]([C@@H:10]([OH:9])[C@@H:6]([NH2:7])[CH2:5][C:4]2[CH:34]=[C:35]([F:37])[CH:36]=[C:2]([F:1])[CH:3]=2)[CH2:15]1)[CH:18]=[CH2:19]

Komponenten

6

Edukt 4

HCID 259Bromide ionHCID 11430Potassium CarbonateHCID 67316078(4S,5S)-4-(3,5-difluorobenzyl)-5-((2R,4R)-4-(allyloxy)-1-benzhydrylpyrrolidin-2-yl)oxazolidin-2-oneHCID 67316146(4S,5R)-4-(3,5-difluorobenzyl)-5-((2R,4R)-4-(allyloxy)pyrrolidin-2-yl)oxazolidin-2-one

Produkt 1

HCID 59346850(1S,2S)-1-((2R,4R)-4-(allyloxy)-1-benzhydrylpyrrolidin-2-yl)-2-amino-3-(3,5-difluorophenyl)propan-1-olAusbeute 87 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

Step C (9): (4S,5S)-4-(3,5-difluorobenzyl)-5-((2R,4R)-4-(allyloxy)-1-benzhydrylpyrrolidin-2-yl)oxazolidin-2-one. A mixture of (4S,5R)-4-(3,5-difluorobenzyl)-5-((2R,4R)-4-(allyloxy)pyrrolidin-2-yl)oxazolidin-2-one (Step C (8), 2.03 g, 6.0 mmol), benzylhydryl bromide (2.22 g, 9.0 mmol), and potassium carbonate (1.24 g, 9.0 mmol) in acetonitrile (40 mL) was stirred at reflux for 35 min. After cooling to rt, the mixture was filtered and concentrated in vacuo. The crude mixture was purified by Flash Chromatography (silica gel, 0-7.5% methanol/chloroform) to give a slightly yellow oil as the title compound (2.64 g, 87% yield): 1H NMR (CDCl3, 300 MHz) δ 1.95-2.23 (2H, m), 2.36 (1H, t, J=12 Hz), 2.70 (1H, m), 3.02 (2H, d, J=6 Hz), 3.48 (1H, m), 3.71-3.99 (4H, m), 4.70 (1H, s), 4.78 (1H, t, J=6 Hz), 4.93 (1H, s), 5.12 (1H, m), 5.22 (1H, dd, J=3, 18 Hz), 5.84 (1H, m), 6.49 (1H, d, J=6 Hz), 6.67 (1H, m), 7.20-7.39 (11H, m).

Aufarbeitung

  1. temperatureat reflux for 35 min
  2. filtrationthe mixture was filtered
  3. concentrationconcentrated in vacuo
  4. customThe crude mixture was purified by Flash Chromatography (silica gel, 0-7.5% methanol/chloroform)

Quellen und Nachweise

ORD-Eintrag
ord-fe0646da00fa43a28ac7329b6c131d74
Quelldatensatz
uspto-grants-2010_06
Patentnummer
US07745470B2

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