Pyridine → (R)-N-(6-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)imidazo[1,2-b]pyridazin-3-yl)acetamide

HRID 588527

Reaktionsgleichung

Reaktionsgleichung von HRID 588527
[F:1][C:2]1[CH:7]=[CH:6][C:5]([F:8])=[CH:4][C:3]=1[C@H:9]1[CH2:13][CH2:12][CH2:11][N:10]1[C:14]1[CH:15]=[CH:16][C:17]2[N:18]([C:20]([NH2:23])=[CH:21][N:22]=2)[N:19]=1.[C:24](OC(=O)C)(=[O:26])[CH3:25].N1C=CC=CC=1>C(Cl)Cl>[F:1][C:2]1[CH:7]=[CH:6][C:5]([F:8])=[CH:4][C:3]=1[C@H:9]1[CH2:13][CH2:12][CH2:11][N:10]1[C:14]1[CH:15]=[CH:16][C:17]2[N:18]([C:20]([NH:23][C:24](=[O:26])[CH3:25])=[CH:21][N:22]=2)[N:19]=1

Komponenten

5

Edukt 3

HCID 1049PyridineHCID 7918Acetic AnhydrideHCID 58334496(R)-6-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)imidazo[1,2-b]pyridazin-3-amine

Produkt 1

HCID 45274000(R)-N-(6-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)imidazo[1,2-b]pyridazin-3-yl)acetamideAusbeute 88,4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a DCM (0.1 mL) solution of (R)-6-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)imidazo[1,2-b]pyridazin-3-amine (Preparation B; 6 mg, 0.019 mmol) cooled in an ice bath was added acetic anhydride (2.1 mg, 0.021 mmol), followed by pyridine (2 mg, 0.025 mmol). The reaction was warmed to ambient temperature and stirred for 1 hour before it was concentrated and directly purified by reverse-phase column chromatography, eluting with 5 to 60% acetonitrile/water to yield (R)—N-(6-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)imidazo[1,2-b]pyridazin-3-yl)acetamide as an off-white solid (6 mg, 81% yield). MS (apci) m/z=358.2 (M+H).

Aufarbeitung

  1. concentrationwas concentrated
  2. customdirectly purified by reverse-phase column chromatography
  3. washeluting with 5 to 60% acetonitrile/water

Quellen und Nachweise

ORD-Eintrag
ord-81b8bab40c364e4c89e473849b9f564b
Quelldatensatz
uspto-grants-2016_01
Patentnummer
US09227975B2

Verknüpfte Notizen

Wird geladen…