Bromocyclopentane → HCID 66733050, compound

Participants

Reaction Steps

1-Ethyl-5-(1-oxa-2-azaspiro[4.4]non-2-en-3-yl)-N-piperidin-4-yl-1H-pyrazolo[3,4-b]pyridin-4-amine (70 mg, 0.0018 mole) (example 31) was taken in acetonitrile and potassium carbonate (126 mg, 0.0009 mole) and cyclopentyl bromide (0.020 ml, 0.0002 mole) were added. The reaction mixture was stirred at refluxing temperature overnight. Acetonitrile was removed and water was added to the residue. Extraction was done with ethyl acetate and washings were done with brine. The organic layer was dried over anhydrous sodium sulphate and concentrated under reduced pressure and the crude product was purified by preparative thin layer chromatography.

Provenance & Evidence