Water → (RS)-2-(1-{1-[5-(4-Fluoro-phenyl)-2-methyl-thiazol-4-yl]-methanoyl}-piperidin-2-ylmethyl)-benzofuran-3-carbonitrile

HRID 2378025Notes

Reaction equation

HRID 2378025 reaction equation
Br[C:2]1[C:6]2[CH:7]=[CH:8][CH:9]=[CH:10][C:5]=2[O:4][C:3]=1[CH2:11][CH:12]1[CH2:17][CH2:16][CH2:15][CH2:14][N:13]1[C:18]([C:20]1[N:21]=[C:22]([CH3:32])[S:23][C:24]=1[C:25]1[CH:30]=[CH:29][C:28]([F:31])=[CH:27][CH:26]=1)=[O:19].[Cu][C:34]#[N:35].O.C(OCC)(=O)C>CN1CCCC1=O>[F:31][C:28]1[CH:29]=[CH:30][C:25]([C:24]2[S:23][C:22]([CH3:32])=[N:21][C:20]=2[C:18]([N:13]2[CH2:14][CH2:15][CH2:16][CH2:17][CH:12]2[CH2:11][C:3]2[O:4][C:5]3[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=3[C:2]=2[C:34]#[N:35])=[O:19])=[CH:26][CH:27]=1

Participants

6

Reactant 4

HCID 962WaterHCID 8857Ethyl AcetateHCID 23146338(RS)-1-[2-(3-bromo-benzofuran-2-ylmethyl)-piperidin-1-yl]-1-[5-(4-fluoro-phenyl)-2-methyl-thiazol-4-yl]-methanoneHCID 178418546HCID 178418546, compound

Product 1

HCID 23146262(RS)-2-(1-{1-[5-(4-Fluoro-phenyl)-2-methyl-thiazol-4-yl]-methanoyl}-piperidin-2-ylmethyl)-benzofuran-3-carbonitrile

Reagents, catalysts & solvents 1

HCID 13387N-methyl-2-pyrrolidoneSolvent

Procedure

To (RS)-1-[2-(3-bromo-benzofuran-2-ylmethyl)-piperidin-1-yl]-1-[5-(4-fluoro-phenyl)-2-methyl-thiazol-4-yl]-methanone, E81 (270 mg, 0.53 mmol) in N-methyl-pyrrolidinone (8 ml) was added copper(I)cyanide (96 mg, 1.06 mmol) and the mixture stirred under argon at reflux for 6 h. The reaction mixture was cooled, poured into water (80 ml) and ethyl acetate (50 ml) and then filtered through kieselguhr. The filtrate was separated and the aqueous phase extracted with ethyl acetate (2×). The combined organics were washed with water (4×50 ml), dried and the solvent removed in vacuo. Chromatography (silica gel) afforded the title compound as a white amorphous solid (94 mg, 39%).

Workup

  1. temperatureat reflux for 6 h
  2. temperatureThe reaction mixture was cooled
  3. filtrationfiltered through kieselguhr
  4. customThe filtrate was separated
  5. extractionthe aqueous phase extracted with ethyl acetate (2×)
  6. washThe combined organics were washed with water (4×50 ml)
  7. customdried
  8. customthe solvent removed in vacuo

Sources & evidence

ORD record
ord-09c9a30e68474ceb81ee8dc1d1f1e273
Source dataset
uspto-grants-2008_12
Patent number
US07470710B2

Reaction notes

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