Barbituric Acid → (4'R,6'S,7'S)-17'-fluoro-4',6'-dimethyl-13'-(1,2,4-triazol-1-yl)spiro[1,3-diazinane-5,8'-5,15-dioxa-2,14-diazatetracyclo[8.7.0.02,7.012,16]heptadeca-1(17),10,12(16),13-tetraene]-2,4,6-trione

Participants

Reaction Conditions

Reaction Steps

A mixture of 6-((2R,6R)-2,6-dimethylmorpholino)-7-fluoro-3-(1H-1,2,4-triazol-1-yl)benzo[d]isoxazole-5-carbaldehyde (Intermediate 574, 500 mg, 1.45 mmol) and pyrimidine-2,4,6(1H,3H,5H)-trione (185 mg, 1.45 mmol) in DMSO (6 ml) was heated at 150° C. for 2 hours in a microwave reactor. The reaction mixture was purified by Super Critical Fluid chromatography on a Chiralpac IC column with a 35% MeOH, 65% CO2 mobile phase to give 290 mg of product as a solid as the first eluting compound.

Provenance & Evidence