Pyridine → HCID 58109643, Verbindung

HRID 2037531Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2037531
[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[C:9]1[CH:14]=[CH:13][C:12]([C@@H:15]([N:17]2[CH2:22][CH2:21][C@@:20]([C:26]3[CH:31]=[CH:30][C:29]([F:32])=[CH:28][CH:27]=3)([CH2:23][CH2:24]O)[O:19][C:18]2=[O:33])[CH3:16])=[CH:11][CH:10]=1.N1C=CC=CC=1.P(Br)(Br)[Br:41]>C(Cl)Cl>[Br:41][CH2:24][CH2:23][C@@:20]1([C:26]2[CH:31]=[CH:30][C:29]([F:32])=[CH:28][CH:27]=2)[O:19][C:18](=[O:33])[N:17]([C@H:15]([C:12]2[CH:13]=[CH:14][C:9]([C:3]3[CH:4]=[CH:5][C:6]([F:8])=[CH:7][C:2]=3[F:1])=[CH:10][CH:11]=2)[CH3:16])[CH2:22][CH2:21]1

Komponenten

5

Edukt 3

HCID 1049PyridineHCID 24614Phosphorus tribromideHCID 53361128HCID 53361128, Verbindung

Produkt 1

HCID 58109643HCID 58109643, VerbindungAusbeute 41,8 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of (S)-3-((S)-1-(2′,4′-difluorobiphenyl-4-yl)ethyl)-6-(4-fluorophenyl)-6-(2-hydroxyethyl)-1,3-oxazinan-2-one (250 mg, 0.55 mmol) in methylene chloride (10 mL) was added pyridine (0.5 mL) and PBr3 (75 mg). The formed mixture was stirred for 2 h. The mixture was washed with water. The organic phase was separated, and concentrated to give the crude product, which was purified by preparative TLC to afford (S)-6-(2-bromoethyl)-3-((S)-1-(2′,4′-difluorobiphenyl-4-yl)ethyl)-6-(4-fluorophenyl)-1,3-oxazinan-2-one (60 mg, 23%). 1H NMR: (400 MHz, CDCl3): δ=1.45 (d, 3H), 2.12-2.38 (d, 4H), 2.43 (m, 1H), 2.94 (m, 2H), 3.49 (m, 1H), 5.22 (m, 1H), 6.83 (m, 2H), 6.95 (m, 4H), 7.19 (m, 1H), 7.22 (m, 2H).

Aufarbeitung

  1. washThe mixture was washed with water
  2. customThe organic phase was separated
  3. concentrationconcentrated
  4. customto give the crude product, which
  5. customwas purified by preparative TLC

Quellen und Nachweise

ORD-Eintrag
ord-268ce89de01f43d8966d1873a984a42f
Quelldatensatz
uspto-grants-2013_11
Patentnummer
US08575156B2

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