Potassium Carbonate → (3S)-3-({4-[3-fluoro-4'-(methyloxy)-4-biphenylyl]-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl}methyl)-N,N-dimethyl-1-pyrrolidinecarboxamide

HRID 2405433Notes

Reaction equation

HRID 2405433 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:12](=[O:13])[NH:11][N:10]=[C:9]2[CH2:14][C@@H:15]2[CH2:19][CH2:18][N:17]([C:20]([N:22]([CH3:24])[CH3:23])=[O:21])[CH2:16]2)=[C:4]([F:25])[CH:3]=1.[CH3:26][O:27][C:28]1[CH:33]=[CH:32][C:31](B(O)O)=[CH:30][CH:29]=1.C(=O)([O-])[O-].[K+].[K+]>O1CCOCC1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].ClCCl>[F:25][C:4]1[CH:3]=[C:2]([C:31]2[CH:32]=[CH:33][C:28]([O:27][CH3:26])=[CH:29][CH:30]=2)[CH:7]=[CH:6][C:5]=1[N:8]1[C:12](=[O:13])[NH:11][N:10]=[C:9]1[CH2:14][C@@H:15]1[CH2:19][CH2:18][N:17]([C:20]([N:22]([CH3:24])[CH3:23])=[O:21])[CH2:16]1

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 201262(4-Methoxyphenyl)boronic acidHCID 67375611(3S)-3-{[4-(4-bromo-2-fluorophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl]methyl}-N,N-dimethyl-1-pyrrolidinecarboxamide

Product 1

HCID 68261487(3S)-3-({4-[3-fluoro-4'-(methyloxy)-4-biphenylyl]-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl}methyl)-N,N-dimethyl-1-pyrrolidinecarboxamide

Reagents, catalysts & solvents 2

HCID 178418807HCID 178418807, compoundCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
110 °C

Procedure

A solution of (3S)-3-{[4-(4-bromo-2-fluorophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl]methyl}-N,N-dimethyl-1-pyrrolidinecarboxamide (0.146 mmol) in dioxane (2 mL) was treated with 4-methoxyphenylboronic acid (0.165 mmol), dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium(II)-dichloromethane adduct (10 mg), and 2M aq potassium carbonate (1 mL). The reaction mixture was purged with nitrogen, sealed, and stirred at 110° C. for 2 h. The solution was cooled to room temperature. The dioxane layer separated from the aqueous layer and was removed via pipette and passed through a plug of celite and sodium sulfate. The plug was washed with dioxane (4 mL). All dioxane filtrates were combined and concentrated in vacuo. Reverse phase HPLC (10-70% acetonitrile/water+0.1% NH4OH) was utilized in purifying the title compound (26 mg, 39%). MS(ES)+ m/e 440.0 [M+H]+.

Workup

  1. customThe reaction mixture was purged with nitrogen
  2. customsealed
  3. temperatureThe solution was cooled to room temperature
  4. customThe dioxane layer separated from the aqueous layer
  5. customwas removed via pipette
  6. washThe plug was washed with dioxane (4 mL)
  7. concentrationconcentrated in vacuo
  8. customin purifying the title compound (26 mg, 39%)

Sources & evidence

ORD record
ord-b14c8335b8c44256a4bea9280cd2b647
Source dataset
uspto-grants-2014_08
Patent number
US08802864B2

Reaction notes

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