Triethylamine → 3-{4-[(1S,4S)-2-oxa-5-azabicyclo[2.2.1]hept-5-yl]-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-6-yl}phenol

Temperature

150 °C

A Smith process vial was charged with a suspension of 3-(4-bromo-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-6-yl)phenol (56 mg, 0.15 mmol) and (1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane hydrochloride (22 mg, 0.16 mmol) in ethanol (4 mL). The suspension was treated with triethylamine (59 μL, 0.45 mmol) and was then heated in the microwave reactor for 15 minutes at 150° C. The reaction mixture was concentrated to dryness under reduced pressure, and the residue was purified by reverse-phase high performance liquid chromatography using a Phenomenex Prodigy 21 mm×250 mm column, running a gradient elution of 10% acetonitrile/90% of 0.1% aqueous trifluoroacetic acid to 75% acetonitrile to provide 3-{4-[(1S,4S)-2-oxa-5-azabicyclo[2.2.1]hept-5-yl]-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-6-yl}phenol. MS (ES+): 386.3 (M+H)+

1. concentrationThe reaction mixture was concentrated to dryness under reduced pressure
2. customthe residue was purified by reverse-phase high performance liquid chromatography
3. washa gradient elution of 10% acetonitrile/90% of 0.1% aqueous trifluoroacetic acid to 75% acetonitrile

ORD record

ord-9f606ea48d20445a89caf2d2314478e4

Source dataset

uspto-grants-2012_03

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08129371B2