Hydrochloric Acid → HCID 67199366, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 390 mg of ethyl {1-[2-(4-chloro-2,5-difluorophenyl)-6,6-dioxo-5,7-dihydrothieno[3,4-d]pyrimidin-4-yl]piperidin-4-ylidene}acetate, 10 ml of 6M hydrochloric acid aqueous solution, and 10 ml of THF was stirred at 90° C. for 5.5 hours. The solvent was distilled off under reduced pressure, and the resultant solid was recrystallized from water-acetonitrile to yield 126 mg of {1-[2-(4-chloro-2,5-difluorophenyl)-6,6-dioxo-5,7-dihydrothieno[3,4-d]pyrimidin-4-yl]piperidin-4-ylidene}acetic acid hydrochloride.

Provenance & Evidence