Halogen substituted .alpha.-(aminoalkyl)-3,4-dihydroxybenzyl alcohols having .beta.-adrenergic stimulant activity, particularly as selective bronchodilators. The .alpha.-aminomethyl derivatives are prepared by the condensation of an appropriately substituted styrene oxide with a primary amine followed by removal of the ether protective group(s). The .alpha.-aminoethyl or .alpha.-aminopropyl derivatives are prepared by the condensation of an appropriately substituted .alpha.-bromoalkyl phenyl ketone with an N-benzyl secondary amine followed by reduction of the ketone moiety and removal of the ether protective group(s).
卤代.alpha.-(
氨基烷基)-3,4-二羟基
苯甲醇具有.beta.-
肾上腺素能兴奋作用,特别是作为选择性支气管扩张剂。.alpha.-
氨甲基衍
生物通过适当取代的
苯乙烯氧化物与一级胺的缩合反应制备,然后去除醚保护基。.alpha.-
氨乙基或.alpha.-
氨丙基衍
生物通过适当取代的.alpha.-
溴代烷基苯酮与N-苄基二级胺的缩合反应制备,然后还原酮基团并去除醚保护基(s)。