HCID 21491318, compound → HCID 178487978, compound

Participants

Reaction Steps

3,4-Dihydro-6-methoxy-4-methyl-3-oxo-2-quinoxalinecarboxylic acid (1.2 g) and N,N'-carbonyldiimidazole (0.8 g) in tetrahydrofuran (25 ml) and dimethylformamide (20 ml) were heated under reflux for 1 hour. 5-Amino-1H-tetrazole (0.5 g) in dimethylformamide (5 ml) was added and the solution was heated under reflux for 1 hour and allowed to cool. The solid was collected and dried, m.p. 295°-296° (d) (70%).

Provenance & Evidence