Acetic Acid → 5-(1-Benzyl-6-fluoro-1H-benzoimidazol-2-yl)-1,3-dimethyl-1H-pyridin-2-one
Reaction equation
[CH2:1]([NH:8][C:9]1[CH:14]=[C:13]([F:15])[CH:12]=[CH:11][C:10]=1[NH:16][C:17]([C:19]1[CH:24]=[C:23]([CH3:25])[C:22](=C)[N:21]([CH3:27])[CH:20]=1)=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(O)(=[O:30])C>>[CH2:1]([N:8]1[C:9]2[CH:14]=[C:13]([F:15])[CH:12]=[CH:11][C:10]=2[N:16]=[C:17]1[C:19]1[CH:24]=[C:23]([CH3:25])[C:22](=[O:30])[N:21]([CH3:27])[CH:20]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1Participants
3
Conditions
- Temperature
- 150 °C
Procedure
1,5-Dimethyl-6-methylene-1,6-dihydro-pyridine-3-carboxylic acid (2-benzylamino-4-fluoro-phenyl)-amide I-12′ (186.000 mg; 0.509 mmol) is dissolved in acetic acid and stirred at 150° C. for 1 h in the microwave. The reaction mixture is then concentrated under reduced pressure and purified on silica chromatography Combiflash (Column: Redisep Rf, 12 g; gradient: DCM/MeOH=100%/0% to 90%/10%; flow rate=30 ml/min; 28 column volumes; detection wavelength: 254 nm). The product containing fractions are combined and concentrated under reduce pressure. The product is then dissolved in acetonitrile:water 1:1 and freeze dried.
Workup
- concentrationThe reaction mixture is then concentrated under reduced pressure
- custompurified on silica chromatography Combiflash (Column: Redisep Rf, 12 g; gradient: DCM/MeOH=100%/0% to 90%/10%; flow rate=30 ml/min; 28 column volumes; detection wavelength: 254 nm)
- additionThe product containing fractions
- concentrationconcentrated
- dissolutionThe product is then dissolved in acetonitrile:water 1:1
- customfreeze dried
Sources & evidence
- ORD record
- ord-3459cfec87fe41e997e0821b5aa6482a
- Source dataset
- uspto-grants-2016_03
- Patent number
- US09296748B2
Reaction notes
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