摘要:
Syntheses of four novel amide analogues of the muscarinic M-2 receptor antagonists, DIBA and BIBN 140, are described from a common intermediate. Pharmacological evaluation through in vitro assays reveals high muscarinic receptor affinity in each of the compounds, but variable subtype selectivity, primarily M-2 but in one case M-3. (C) 1997 Elsevier Science Ltd.