(6a.alpha.,10a.alpha.,11a.alpha.)-2-(2-pyridinyl)-1,3,4,6,6a,7,8,9,10,10a,1 1,11a-dodecahydro-2H-pyrazino[1,2-b]isoquinoline and derivatives or acid addition salts thereof are selective .alpha..sub.2 -adrenergic receptor antagonists and thereby useful as antidepressant agents and for treating sedation caused by antihypertensive therapy.
(6a.alpha.,10a.alpha.,11a.alpha.)-2-(2-
吡啶基)-1,3,4,6,6a,7,8,9,10,10a,11,11a-十二氢-2H-
吡嗪[1,2-b]
异喹啉及其衍
生物或酸盐是选择性α2-
肾上腺素能受体拮抗剂,因此可用作抗抑郁剂并用于治疗抗高血压治疗引起的镇静作用。