1, 2-dihydro-2-oxo-1, 8-naphthyridine derivative

Details 1, 2-dihydro-2-oxo-1, 8-naphthyridine derivative 1, 2-dihydro-2-oxo-1, 8-naphthyridine derivative

2006-06-27

2006-06-27

Owens, Amelia A. (Department: 1625)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

C546S122000

Reexamination Certificate

active

07067528

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.

REFERENCES:
patent: 5843957 (1998-12-01), Muraoka et al.
patent: 6420381 (2002-07-01), Muraoka et al.
patent: 0842933 (1998-05-01), None
patent: 0947515 (1999-10-01), None
patent: 1 086 948 (2001-03-01), None
patent: 1104763 (2001-06-01), None

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