Potassium Carbonate → 4-(4-methoxy-1-(1-methoxybutan-2-yl)-1H-pyrrolo[3,2-c]pyridin-3-yl)benzonitrile

HRID 2206019Notes

Reaction equation

HRID 2206019 reaction equation
I[C:2]1[C:6]2[C:7]([O:11][CH3:12])=[N:8][CH:9]=[CH:10][C:5]=2[N:4]([CH:13]([CH2:17][CH3:18])[CH2:14][O:15][CH3:16])[CH:3]=1.CC1(C)C(C)(C)OB([C:27]2[CH:34]=[CH:33][C:30]([C:31]#[N:32])=[CH:29][CH:28]=2)O1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.O.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>[CH3:12][O:11][C:7]1[C:6]2[C:2]([C:27]3[CH:34]=[CH:33][C:30]([C:31]#[N:32])=[CH:29][CH:28]=3)=[CH:3][N:4]([CH:13]([CH2:17][CH3:18])[CH2:14][O:15][CH3:16])[C:5]=2[CH:10]=[CH:9][N:8]=1

Participants

7

Reactant 3

HCID 11430Potassium CarbonateHCID 27346254-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrileHCID 1179879873-Iodo-4-methoxy-1-[1-(methoxymethyl)propyl]-1H-pyrrolo[3,2-c]pyridine

Product 1

HCID 1179878684-(4-methoxy-1-(1-methoxybutan-2-yl)-1H-pyrrolo[3,2-c]pyridin-3-yl)benzonitrileYield 21.5%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolvent2×HCID 6228DimethylformamideSolvent

Conditions

Temperature
130 °C

Procedure

To a solution of 3-iodo-4-methoxy-1-(1-methoxybutan-2-yl)-1H-pyrrolo[3,2-c]pyridine (200 mg) obtained in Step A-2 of Example 17 in DMF (4 mL)/water (0.40 mL) were added 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile (191 mg), tetrakis(triphenylphosphine)palladium(0) (64.2 mg) and potassium carbonate (154 mg). The reaction mixture was stirred under microwave irradiation at 130° C. for 30 min. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, filtered, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate) to give the title compound (40.0 mg).

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate)

Sources & evidence

ORD record
ord-eaeac36c95c240ddb42f451a97f59bbf
Source dataset
uspto-grants-2016_06
Patent number
US09371320B2

Reaction notes

Loading…