Tetrahydrofuran → 4'-{[4-(1-Ethylpiperidin-4-yl)-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile
Reaction equation
[CH2:1]([N:8]1[CH2:13][CH2:12][CH:11]([N:14]2[C:19](=[O:20])[C:18]([CH2:21][C:22]3[CH:27]=[CH:26][C:25]([C:28]4[C:29]([C:34]#[N:35])=[CH:30][CH:31]=[CH:32][CH:33]=4)=[CH:24][CH:23]=3)=[C:17]([CH2:36][CH2:37][CH3:38])[N:16]3[N:39]=[CH:40][N:41]=[C:15]23)[CH2:10][CH2:9]1)[C:2]1C=CC=CC=1.O1CCCC1>[C].[Pd].C(O)C>[CH2:1]([N:8]1[CH2:9][CH2:10][CH:11]([N:14]2[C:19](=[O:20])[C:18]([CH2:21][C:22]3[CH:27]=[CH:26][C:25]([C:28]4[C:29]([C:34]#[N:35])=[CH:30][CH:31]=[CH:32][CH:33]=4)=[CH:24][CH:23]=3)=[C:17]([CH2:36][CH2:37][CH3:38])[N:16]3[N:39]=[CH:40][N:41]=[C:15]23)[CH2:12][CH2:13]1)[CH3:2]Participants
5
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
A mixture of 4′-{[4-(1-benzylpiperidin-4-yl)-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile (4.82 g), 10% palladium-carbon (2.39 g), tetrahydrofuran (30 mL) and ethanol (60 mL) was stirred at room temperature for 2 days under a hydrogen atmosphere. The reaction mixture was filtered, and the solvent was evaporated. The residue was purified by basic silica gel chromatography [eluent: methanol/ethyl acetate=0/10→05/95 (volume ratio)] to give the title compound as a colorless amorphous compound (146 mg, 3%).
Workup
- filtrationThe reaction mixture was filtered
- customthe solvent was evaporated
- customThe residue was purified by basic silica gel chromatography [eluent: methanol/ethyl acetate=0/10→05/95 (volume ratio)]
Sources & evidence
- ORD record
- ord-43d909f6382f4bacbc1b84753e348d11
- Source dataset
- uspto-grants-2012_10
- Patent number
- US08283353B2
Reaction notes
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