Tributylphosphine → 1-(2-Cyclopropyl-3-methylimidazo[1,2-a]pyridin-6-yl)-4-(2-thienylmethoxy)pyridin-2(1H)-one
Reaktionsgleichung
[CH:1]1([C:4]2[N:5]=[C:6]3[CH:11]=[CH:10][C:9]([N:12]4[CH:17]=[CH:16][C:15]([OH:18])=[CH:14][C:13]4=[O:19])=[CH:8][N:7]3[C:20]=2[CH3:21])[CH2:3][CH2:2]1.[S:22]1[CH:26]=[CH:25][CH:24]=[C:23]1[CH2:27]O.C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>C1COCC1>[CH:1]1([C:4]2[N:5]=[C:6]3[CH:11]=[CH:10][C:9]([N:12]4[CH:17]=[CH:16][C:15]([O:18][CH2:27][C:23]5[S:22][CH:26]=[CH:25][CH:24]=5)=[CH:14][C:13]4=[O:19])=[CH:8][N:7]3[C:20]=2[CH3:21])[CH2:3][CH2:2]1Komponenten
6
Edukt 4
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 60 °C
Versuchsvorschrift
To a solution of 1-(2-cyclopropyl-3-methylimidazo[1,2-a]pyridin-6-yl)-4-hydroxypyridin-2(1H)-one (150 mg), 2-thienylmethanol (121 mg) and tributylphosphine (322 mg) in THF (15 ml) was added 1,1′-(azodicarbonyl)dipiperidine (401 mg). The mixture was stirred under sonication at 60° C. for 4 h. The reaction mixture was then cooled to room temperature, and concentrated in vacuo. The residue was diluted with DCM, washed with water and brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by silica gel column chromatography (MeOH/DCM) to give the title compound (45 mg) as an off-white solid.
Aufarbeitung
- temperatureThe reaction mixture was then cooled to room temperature
- concentrationconcentrated in vacuo
- additionThe residue was diluted with DCM
- washwashed with water and brine
- dry with materialdried over Na2SO4
- concentrationconcentrated in vacuo
- customThe residue was purified by silica gel column chromatography (MeOH/DCM)
Quellen und Nachweise
- ORD-Eintrag
- ord-8d4bd7dc9cd5497aa019ee5a651bcb35
- Quelldatensatz
- uspto-grants-2016_06
- Patentnummer
- US09365540B2
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