Potassium Carbonate → HCID 59258964, compound

HRID 2389958Notes

Reaction equation

HRID 2389958 reaction equation
[NH2:1][C:2]1[N:3]=[C:4]([CH3:19])[C:5]2[CH:11]=[C:10](Br)[C:9](=[O:13])[N:8]([CH:14]3[CH2:18][CH2:17][CH2:16][CH2:15]3)[C:6]=2[N:7]=1.CC1(C)C(C)(C)OB([C:28]2[CH:29]=[N:30][N:31](C(OC(C)(C)C)=O)[CH:32]=2)O1.C(=O)([O-])[O-].[K+].[K+]>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.CN(C=O)C>[NH2:1][C:2]1[N:3]=[C:4]([CH3:19])[C:5]2[CH:11]=[C:10]([C:28]3[CH:29]=[N:30][NH:31][CH:32]=3)[C:9](=[O:13])[N:8]([CH:14]3[CH2:18][CH2:17][CH2:16][CH2:15]3)[C:6]=2[N:7]=1

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 16123384HCID 16123384, compoundHCID 16217654tert-butyl 4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate

Product 1

HCID 59258964HCID 59258964, compoundYield 65%

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
120 °C

Procedure

To a solution of 2-amino-6-bromo-8-cyclopentyl-4-methylpyrido[2,3-d]pyrimidin-7(8H)-one (100 mg, 0.31 mmol), tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxy late 110 mg, 1.2 equiv), dichlorobis(triphenylphosphine)palladium(II) (6.5 mg, 009 mmol), DMF (2 mL) in a 10 mL microwave vial was added potassium carbonate (3 M, 0.8 mL). The solution was degassed with N2 for 10 min before being capped and heated in the microwave reactor for 10 min at 120° C. Once complete, the reaction was diluted with 1 N NaOH (10 mL) and EtOAc (50 mL). The EtOAc layer was washed with 3N HCl, dried over MgSO4, filtered, and concentrated under reduced pressure. The crude product was submitted for chromatography purification. the title compound was obtained in (62.5 mg, 65% yield).

Workup

  1. customThe solution was degassed with N2 for 10 min
  2. custombefore being capped
  3. additionOnce complete, the reaction was diluted with 1 N NaOH (10 mL) and EtOAc (50 mL)
  4. washThe EtOAc layer was washed with 3N HCl
  5. dry with materialdried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe crude product was submitted for chromatography purification

Sources & evidence

ORD record
ord-1dd065ba92274b45800b95c8e32b9769
Source dataset
uspto-grants-2012_09
Patent number
US08273755B2

Reaction notes

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