| 摘要 |
PROBLEM TO BE SOLVED: To provide muscarinic acetylcholine receptor antagonists, and methods of using them. SOLUTION: A compound represented by the structural formula II (R2 and R3 are each independently an aryl or a heteroaryl; and R4 is an alkyl, a cycloalkyl, a heteroaryl, or the like), and its use as a therapeutic agent for asthma, COPD, IBD, urinary in continence. COPYRIGHT: (C)2008,JPO&INPIT
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