N-bromobutanimide → 7-bromo-9-pentyl-3-[2-(5-phenyl-1,3,4-oxadiazol-2-yl)ethyl]-6,9-dihydro-5H-[1,2,4]triazolo[4,3-a]purin-5-one

Participants

Reaction Conditions

Reaction Steps

The mixture of 9-pentyl-3-[2-(5-phenyl-1,3,4-oxadiazol-2-yl)ethyl]-6,9-dihydro-5H-[1,2,4]triazolo[4,3-a]purin-5-one (53 mg, 0.13 mmol) and N-bromosuccinimide (34 mg, 0.19 mmol) in THF (20 mL) was stirred at 70° C. for 1 hour. The reaction mixture was concentrated and the residue was purified by preparative LCMS to give the desired product. LCMS calculated for C21H22BrN8O2 (M+H): 497.1. Found: 497.1.

Provenance & Evidence