Reaction equation
[F:1][CH:2]([F:38])[C:3]1[CH:7]=[C:6]([CH:8]([F:10])[F:9])[N:5]([CH2:11][C:12]([N:14]2[CH2:19][CH2:18][CH:17]([C:20]3[S:21][CH:22]=[C:23]([C:25]4[CH2:29][CH:28]([C:30]5[CH:37]=[CH:36][CH:35]=[CH:34][C:31]=5[CH:32]=[O:33])[O:27][N:26]=4)[N:24]=3)[CH2:16][CH2:15]2)=[O:13])[N:4]=1.[BH4-].[Na+].Cl.C(OCC)(=O)C>CO>[F:38][CH:2]([F:1])[C:3]1[CH:7]=[C:6]([CH:8]([F:10])[F:9])[N:5]([CH2:11][C:12]([N:14]2[CH2:15][CH2:16][CH:17]([C:20]3[S:21][CH:22]=[C:23]([C:25]4[CH2:29][CH:28]([C:30]5[CH:37]=[CH:36][CH:35]=[CH:34][C:31]=5[CH2:32][OH:33])[O:27][N:26]=4)[N:24]=3)[CH2:18][CH2:19]2)=[O:13])[N:4]=1Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of 2-{3-[2-(1-{[3,5-bis(difluoromethyl)-1H-pyrazol-1-yl]acetyl}piperidin-4-yl)-1,3-thiazol-4-yl]-4,5-dihydro-1,2-oxazol-5-yl}benzaldehyde (1.9 g) in methanol (50 ml) was added, at 0° C., sodium borohydride (0.16 g), and then the mixture was stirred at room temperature for 2 hours. Subsequently, the reaction mixture was admixed at 0° C. with 0.1 molar hydrochloric acid and ethyl acetate. The organic extracts were dried over sodium sulphate and concentrated under reduced pressure. The residue was purified by chromatography. This gave 2-[3,5-bis(difluoromethyl)-1H-pyrazol-1-yl]-1-[4-(4-{5-[2-(hydroxymethyl)phenyl]-4,5-dihydro-1,2-oxazol-3-yl}-1,3-thiazol-2-yl)piperidin-1-yl]-ethanone (1.1 g).
Workup
- dry with materialThe organic extracts were dried over sodium sulphate
- concentrationconcentrated under reduced pressure
- customThe residue was purified by chromatography
Sources & evidence
- ORD record
- ord-991c61fd38b3429d8e8475973155e7a7
- Source dataset
- uspto-grants-2015_10
- Patent number
- US09167821B2
Linked notes
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