Hydrochloric Acid → HCID 86701152, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of 4.54 g of methyl 8-(methoxymethyl)-4-oxo-1-(tetrahydrofuran-3-yl)-4,5-dihydroimidazo[1,5-a]quinoxaline-7-carboxylate and 45.0 mL of methanol was added 17.0 mL of a 3 M aqueous sodium hydroxide solution, followed by stirring at 70° C. for 5 hours. Concentrated hydrochloric acid and 1 M hydrochloric acid were added thereto to adjust the pH to about 3, and the precipitated solid was collected by filtration and dried under reduced pressure to obtain 4.31 g of 8-(methoxymethyl)-4-oxo-1-(tetrahydrofuran-3-yl)-4,5-dihydroimidazo[1,5-a]quinoxaline-7-carboxylic acid as a white solid.

Provenance & Evidence