Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2005-04-26
2005-04-26
Aulakh, Charanjit S. (Department: 1625)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C546S089000
Reexamination Certificate
active
06884805
ABSTRACT:
The invention relates to novel polymorph crystal forms A and B of N-(2,3-dimethyl-5,6,7,8-tetrahydrofuro[2,3-b]quinolin-4-yl)-2-(2-oxopyrrolidin-1-yl)acetamide:The compounds and pharmaceutical compositions thereof are useful for activating a malfunctioned cholinergic neuron that is associated with memory loss disturbances.
REFERENCES:
patent: 5397785 (1995-03-01), Ninomiya et al.
patent: 0 427 636 (1991-05-01), None
Haleblian et al., “Pharmaceutical Applications of Polymorphism,”Journal of Pharmaceutical Sciences, 58(8), 911-929 (1969).
Ishige Takayuki
Yamabe Haruko
Aulakh Charanjit S.
Leydig , Voit & Mayer, Ltd.
Mitsubishi Pharma Corporation
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