Chloride → 1-(3,5-di-O-acetyl-2-deoxy-2-fluoro-beta-D-arabinofuranosyl)-4-diazoacetyl-5-(dimethylaminomethyleneamino)imidazole

Participants

Reaction Steps

Compound (35) (93 mg) obtained in item (3) above was dissolved in tetrahydrofuran (4.5 ml), to which was then added N,N-dimethylchloroforminium chloride (135 mg) under ice-cooling. The resulting mixture was allowed to undergo the reaction for 30 minutes. The reaction solution containing compound (36) thus produced was then added to a 0.2M diazomethane solution (30 ml) in diethylether and the reaction was maintained at room temperature for 1 hour. The reaction solution so obtained was filtered and the filtrate was concentrated to give the titled compound (37) (83 mg) as a syrup. Yield: 75%.

Provenance & Evidence