HCID 22632906, compound → HCID 9948030, compound

Participants

Reaction Steps

Five percent Pd/BaSO4 (60 mg) was added to a solution of 3-benzyloxy-1-ethyl-6-fluoro-7-pyrrolidinyl-1H-quinazoline-2,4-dione (Example E, 0.21 g, 0.55 mmol) in 16 mL of THF. The mixture was shaken under 50 PSI of hydrogen for 31 hours, filtered, and concentrated to afford 0.16 g of a solid. This solid was dissolved in 1N sodium hydroxide and washed with chloroform. The chloroform layer was back extracted with sodium hydroxide, and the combined basic extracts were acidified to pH 3. The aqueous layer was extracted with chloroform, dried over magnesium sulfate, and concentrated to give 0.11 g of the title compound as a solid, mp 170-171° C.

Provenance & Evidence