A solution of 50 mg (0.10 mmol) of 5-1-butyl-2-5-carbomethoxy-2-chlorophenyl)-2, siydro-4-2-fluoro-4-bromobanzyl)-1,2,4-triazol-3-one in 1 ml of n-butylamine was stirred memight at 65 "C. After being cooled to room temperature, volatiles were evaporated in
I. The residue was flash chromatographed (gradient elution with 1-5% MeOH in (b,C) to yield 41 mg (76%) of a colorless, glassy solid.
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