Sodium Bicarbonate → HCID 178479640, compound

Participants

Reaction Steps

To a solution of 4-chloro-2-[({1-[2-(7-fluoro-2-oxo-1(2H)-quinolinyl)ethyl]-4-piperidinyl}amino)methyl]-1H-pyrimido[5,4-b][1,4]oxazin-7(6H)-one (see Example 124(j) for a preparation) (67 mg, 0.13 mmol) in methanol (3 mL) was added NaHCO3 (40 mg) followed by 10% palladium over carbon catalyst (30 mg). The resulting mixture was stirred at room temperature under 1 atm of hydrogen (balloon) for 24 h. The reaction mixture was filtered through a nylon filter and the crude residue was purified by chromatography (silica gel) using a 0-20% MeOH/DCM gradient to provide the free base of the title compound (10 mg, 16%).

Provenance & Evidence