Absolute configuration of glycerol derivatives. 7. Enantiomers of 2-[[[2-(2,6-dimethoxyphenoxy)ethyl]amino]ethyl]-1,4-benzodioxane (WB-4101), a potent competitive .alpha.-adrenergic antagonist
作者:Wendel L. Nelson、Mark L. Powell、Donald C. Dyer
DOI:10.1021/jm00195a024
日期:1979.9
methoxamine-induced contraction of rabbit aortic strips, showing a pA2 = 9.0. This result is consistent with the previous observation that S enantiomers of 2-[(alkylamino)methyl]benzodioxanes are more potent antagonists at a alpha-adrenergic receptors than the R enantiomers.
由手性2-[[(甲苯磺酰氧基)甲基] -1,4-制备2-[[[[[2-(2,6-二甲氧基苯氧基)乙基]氨基]甲基] -1,4-苯并二恶烷(4)的对映异构体。苯并二恶烷[(2S)-和(2R)-5]。相应的(2R)-和(2S)-2-(氨基乙基)-1,4-苯并二恶烷[2R)-和(2S)-7]是通过修饰的加百利合成法制备的,并通过与2,6-二甲氧基苯氧基乙醛(8)并用NaBH4还原中间体亚胺。对映体(2S)-4在对抗甲氧胺引起的兔主动脉条收缩的α-肾上腺素能反应中的效力是对映体(2R)-4的40--50倍,显示pA2 = 9.0。该结果与先前的观察结果一致,即2-[((烷基氨基)甲基]苯并二恶烷的S对映异构体在α-肾上腺素受体上比R对映异构体更有效。