Muscarinic antagonists

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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Reexamination Certificate

active

06890936

ABSTRACT:
The invention described herein are compounds in accordance with formula I:wherein R1, R2, R3, R4, R5, R6, R2, R8, R9, n, X, and Z are as defined herein, pharmaceutical compositions containing at least one compound of formula I, methods of preparation thereof, and methods of treating disorders with at least one compound of formula I or at least one compound of formula I in association with at least one acetylcholinesterase inhibitor.

REFERENCES:
patent: 0456183 (1991-11-01), None
J. Baumgold et al., 3-α-Chlorimperialine: an m2-selective muscarinic receptor antagonist that penetrates into brain,European Journal of Pharmacology, (1994), 251:315-317.
C. Melchiorre et al., Synthesis and Biological Activity of Some Methoctramine-Related Tetraamines Bearing a 11-Acetyl-5, 11-dihydro-6H-pyrido . . . ,J. Med. Chem., (1993), 36:3734-3737.
M. Watson et al., [3H] pirenzepine and (-)-[3H] quinuclidinyl benzilato binding to rat cerebral cortical and cardiac muscarinic cholinergic sites,J. Pharmacol. Exp. Ther., (1986), 237:419-427.
PCT International Search Report dated Apr. 24, 2003 for corresponding PCT Application No. PCT/US/03/12694.

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