Sodium Carbonate → 6-(2-methyl-4-pyridinyl)-2-(3-{(1S,5R)-1-[4-(trifluoromethyl)phenyl]-3-azabicyclo[3.1.0]hex-3-yl}propyl)-1,2,4-triazine-3,5(2H,4H)-dione

HRID 1513345Notes

Reaction equation

HRID 1513345 reaction equation
Br[C:2]1[C:3](=[O:28])[NH:4][C:5](=[O:27])[N:6]([CH2:8][CH2:9][CH2:10][N:11]2[CH2:16][C@H:15]3[C@:13]([C:17]4[CH:22]=[CH:21][C:20]([C:23]([F:26])([F:25])[F:24])=[CH:19][CH:18]=4)([CH2:14]3)[CH2:12]2)[N:7]=1.[CH3:29][C:30]1[CH:35]=[C:34](B2OC(C)(C)C(C)(C)O2)[CH:33]=[CH:32][N:31]=1.C(=O)([O-])[O-].[Na+].[Na+].C1(C2C=CC=CC=2)C=CC=CC=1P(C1CCCCC1)C1CCCCC1>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O.COCCOC>[CH3:29][C:30]1[CH:35]=[C:34]([C:2]2[C:3](=[O:28])[NH:4][C:5](=[O:27])[N:6]([CH2:8][CH2:9][CH2:10][N:11]3[CH2:16][C@H:15]4[C@:13]([C:17]5[CH:22]=[CH:21][C:20]([C:23]([F:24])([F:25])[F:26])=[CH:19][CH:18]=5)([CH2:14]4)[CH2:12]3)[N:7]=2)[CH:33]=[CH:32][N:31]=1

Participants

8

Reactant 4

HCID 10340Sodium Carbonate2×HCID 27342162-(Dicyclohexylphosphino)biphenyl2×HCID 164142742-Methylpyridine-4-boronic acid pinacol ester2×HCID 594960966-bromo-2-(3-{(1S,5R)-1-[4-(trifluoromethyl)phenyl]-3-azabicyclo[3.1.0]hex-3-yl}propyl)-1,2,4-triazine-3,5(2H,4H)-dione

Product 1

HCID 594961036-(2-methyl-4-pyridinyl)-2-(3-{(1S,5R)-1-[4-(trifluoromethyl)phenyl]-3-azabicyclo[3.1.0]hex-3-yl}propyl)-1,2,4-triazine-3,5(2H,4H)-dioneYield 15.29%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalyst2×HCID 962WaterSolventHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
90 °C

Procedure

6-bromo-2-(3-{(1S,5R)-1-[4-(trifluoromethyl)phenyl]-3-azabicyclo[3.1.0]hex-3-yl}propyl)-1,2,4-triazine-3,5(2H,4H)-dione (P8,100 mg, 0.218 mmol) was suspended in a degassed mixture of 1,2-Dimethoxyethane (DME) (3.629 mL)/Water (0.726 mL), then 2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (143 mg, 0.653 mmol), SODIUM CARBONATE (69.2 mg, 0.653 mmol), 2-biphenylyl(dicyclohexyl)phosphane (15.26 mg, 0.044 mmol) and Tetrakis (50.3 mg, 0.044 mmol) were added. The mixture was then heated at 90° C. and stirred at that temperature for 3 hours. The reaction mixture was then cooled down to room temperature, 2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (143 mg, 0.653 mmol), 2-biphenylyl(dicyclohexyl)phosphane (15.26 mg, 0.044 mmol), SODIUM CARBONATE (69.2 mg, 0.653 mmol) and Tetrakis (50.3 mg, 0.044 mmol) were added again, the mixture was stirred at 90° C. for further 2 hours, then left stirring at room temperature overnight. The mixture was concentrated under reduced pressure and partitioned between AcOEt and water. Phases were separated, organic phase was dried over sodium sulphate and concentrated under reduced pressure. The residue was purified by Preparative HPLC affording 6-(2-methyl-4-pyridinyl)-2-(3-{(1S,5R)-1-[4-(trifluoromethyl)phenyl]-3-azabicyclo[3.1.0]hex-3-yl}propyl)-1,2,4-triazine-3,5(2H,4H)-dione (E3, 15.7 mg, 0.033 mmol, 15.29% yield).

Workup

  1. temperatureThe reaction mixture was then cooled down to room temperature
  2. stirringthe mixture was stirred at 90° C. for further 2 hours
  3. waitleft
  4. stirringstirring at room temperature overnight
  5. concentrationThe mixture was concentrated under reduced pressure
  6. custompartitioned between AcOEt and water
  7. customPhases were separated
  8. dry with materialorganic phase was dried over sodium sulphate
  9. concentrationconcentrated under reduced pressure
  10. customThe residue was purified by Preparative HPLC

Sources & evidence

ORD record
ord-6bdb8a9bfa9044b69fd9cfe3fe3c75aa
Source dataset
uspto-grants-2012_07
Patent number
US08217168B2

Reaction notes

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