Compounds of formula (i) and of formula (ii)
wherein the symbols have the meaning disclosed in the specification, specifically or selectively modulate &agr;2B and/or &agr;2C adrenergic receptors in preference over &agr;2A adrenergic receptors, and as such are useful for alleviating chronic pain and allodynia and have no or only minimal cardivascular and/or sedatory activity.
公式(i)和公式(ii)的化合物,其中符号的含义在规范中披露,特异地或选择性地调节α2B和/或α2C
肾上腺素能受体,优先于α2A
肾上腺素能受体,因此可用于缓解慢性疼痛和痛觉过敏,并且没有或仅有最小的心血管和/或催眠活性。