Sodium hydride → HCID 18916416, compound

Participants

Reaction Steps

A stirred suspension of 2.0 grams (51 mmole) of 60% sodium hydride (in mineral oil) in 25 mL of tetrahydrofuran is cooled in an ice bath. To this is added a solution of 10.2 grams (25.5 mmole) of 3-(2-acetylamino-4-chloro-6-fluorobenzoxazol-7-yl)-1-methyl-6-trifluoromethyl-2,4-(1H,3H)pyrimidinedione in 25 mL of tetrahydrofuran. Upon completion of the addition 2.9 grams (25.3 mmole) of methanesulfonyl chloride is added. The reaction mixture is heated to reflux, where it stirs for one hour and then concentrated under reduced pressure, yielding 3-[2-(N-acetyl-N-methylsulfonylamino)-4-chloro-6-fluorobenzoxazol-7-yl]-1-methyl-6-trifluoromethyl-2,4-(1H,3H)-pyrimidinedione.

Provenance & Evidence