The present invention is directed to compounds of formula (I) ##STR00001## wherein variables X.sup.1, X.sup.2, Y, R.sup.1a, R.sup.1b, R.sup.2a, R.sup.2b, A.sub.1, A.sub.2, A.sub.3, and A.sub.4 are as defined in the description, and methods of use to treat pain, neuropathic pain, allodynia, pain associated with inflammation or an inflammatory disease, inflammatory hyperalgesia, bladder overactivity, and urinary incontinence.