Antihistaminic spiro compounds

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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Details

C514S211120, C514S212020, C514S278000

Reexamination Certificate

active

07087595

ABSTRACT:
This invention concerns the compounds of formulaor a prodrug, a N-oxide, an addition salt, a quaternary amine or a stereochemically isomeric form thereof wherein R1, R2, -A-B—, L, and n have the meaning given in the description. The invention relates to preparations and compositions of the present compounds and their use as medicines.

REFERENCES:
patent: 0 127 412 (1990-10-01), None
patent: 0393 738 (1990-10-01), None
patent: 0 518 434 (1992-12-01), None
patent: WO 97/24356 (1997-07-01), None

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