Biphenyl compounds useful as muscarinic receptor antagonists

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C546S207000, C514S343000

Reexamination Certificate

active

07851632

ABSTRACT:
This invention provides compounds of formula I:wherein a, b, c, m, p, s, t, W, Ar1, X1, R1, R2, R3, R4, R6, and R7are as defined in the specification. The compounds of formula I are muscarinic receptor antagonists. The invention also provides pharmaceutical compositions containing such compounds, processes and intermediates for preparing such compounds and methods of using such compounds to treat pulmonary disorders.

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