Triethylamine → 2'-deoxy-3',5'-di-O-acetyl-5-fluoro-3-(2-methylbenzoyl)uridine

Participants

Reaction Steps

500 mg of 2'-deoxy-3',5'-di-O-acetyl-5-fluorouridine and 0.76 ml of triethylamine were dissolved in 10 ml of dry acetonitrile, and the resulting solution was cooled with ice. To the solution was added 710 mg of 2-methylbenzoyl chloride, and the mixture was allowed to stand at room temperature for 90 minutes. The same procuedre as in Example 1 gave 260 mg (yield: 38.4%) of 2'-deoxy-3',5'-di-O-acetyl-5-fluoro-3-(2-methylbenzoyl)uridine as crystals having a melting point of 108° to 109° C. This was identical with the crystals obtained in Examples 1 by the mixed examination.

Provenance & Evidence