The compounds of the present invention are of formula I: ##STR00001## wherein A, R.sup.3, R.sup.4 is as defined herein, are useful as ligands for nicotinic receptors.

 
Web www.patentalert.com

< C-linked cyclic antagonists of P2Y.sub.1 receptor useful in the treatment of thrombotic conditions

> Phosphodiesterase 4 inhibitors

> Biaryloxymethylarenecarboxylic acids as glycogen synthase activator
~ 00599