Hydrochloric Acid → HCID 22106125, compound

Participants

Reaction Steps

To a solution of N-[1-butyl-4-[3-{2-(N-benzyl-N-ethylamino)ethoxy)-phenyl]-1,2-dihydro-2-oxo-1,8-naphthyridin-3-yl]-N'-(2,6-diisopropylphenyl)urea (129 mg, 0.191 mmol) in ethanol (10 ml) were added 12N aqueous hydrochloric acid solution (1 ml) and 10% palladium-carbon (210 mg), and the mixture was stirred at room temperature under hydrogen atmosphere for five hours. The mixture was filtered through a cerite pad, and the filtrate was concentrated. To the concentrated resultant was added aqueous ammonia, and the mixture was extracted with ethyl acetate. The extract was washed with water, washed with a saturated aqueous sodium chloride solution, and dried over anhydrous magnesium sulfate. The reside was concentrated under reduced pressure, and the residue was purified by thin layer chromatography (10% methanol in chloroform) to give the title compound (63 mg, 0.10 mmol).

Provenance & Evidence