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US 7,067,528 B2Granted
1, 2-dihydro-2-oxo-1, 8-naphthyridine derivative
AssigneeSumitomo Pharmaceuticals Company, Limited
InventorsMasami Muraoka, Satoshi Ohnuma, Hitoshi Ban
Life of this patent
Estimating the term…
Abstract
Hydrates of N-[1-butyl-4-[3-[3-(hydroxy)propoxy]-phenyl]-1,2-dihydro-2-oxo-1,8-naphthyridin-3-yl]-N′-(2,6-diisopropyl-4-aminophenyl)urea hydrochloride of the formula: are quite excellent in stability than amorphous one and are more preferable for medicaments.
Claims5
A monohydrate of N-[1-butyl-4-[3-[3-(hydroxyl)propoxy]-phenyl]-1,2-dihydro-2-oxo-1,8-naphthyridin-3-yl]-N′-(2,6-diisopropyl-4-aminophenyl)urea hydrochloride of the formula:
Dependencies are inferred from the claim text.