N-bromobutanimide → 5-((4-(7-amino-6-bromo-3-(6-phenylpyridin-3-yl)pyrazolo[1,5-a]pyrimidin-5-yl)cyclohexyl)methyl)-1,3,4-oxadiazol-2(3H)-one

Participants

Reaction Steps

To a 20 mL scintillation vial was charged 5-((4-(7-amino-3-(6-phenylpyridin-3-yl)pyrazolo[1,5-a]pyrimidin-5-yl)cyclohexyl)methyl)-1,3,4-oxadiazol-2(3H)-one as a trifluoroacetate salt (0.035 mmol, 20 mg), MeCN (2 mL) and N-bromosuccinimide (0.035 mmol, 6.3 mg). The resulting solution was stirred at room temperature for 1 hour. After 1 hour, the solvent was removed in vacuo and the resulting residue was purified via reverse-phase HPLC to yield 5-((4-(7-amino-6-bromo-3-(6-phenylpyridin-3-yl)pyrazolo[1,5-a]pyrimidin-5-yl)cyclohexyl)methyl)-1,3,4-oxadiazol-2(3H)-one (m+H=546.57, retention time=4.07 min).

Provenance & Evidence