1,4-Dioxane hydrochloride → HCID 86686229, compound

Participants

Reaction Steps

tert-Butyl 4-[2-(3-methoxyazetidin-1-yl)pyrimidin-5-yl]-3,6-dihydropyridine-1(2H)-carboxylate (483 mg) was mixed with EtOH (5 ml), and 10% palladium carbon (100 mg) was added thereto, followed by stirring at room temperature for 5 hours under hydrogen atmosphere. The reaction mixture was filtered using Celite as a filtration adjuvant, and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (hexane/EtOAc). The purified product thus obtained was mixed with EtOH (5 ml), and 4 M hydrogen chloride/dioxane (3.5 ml) was added thereto, followed by stirring at room temperature overnight. The reaction mixture was concentrated under reduced pressure, and then mixed with EtOH (5 ml), and potassium carbonate (2.0 g) was added thereto, followed by stirring at 80° C. for 2 hours. The reaction mixture was filtered and the filtrate was concentrated under reduced pressure to obtain 2-(3-methoxyazetidin-1-yl)-5-(piperidin-4-yl)pyrimidine (143 mg).

Provenance & Evidence