Synthesis of imidazo[1,2-a]pyrazine derivatives with uterine-relaxing, antibronchospastic, and cardiac-stimulating properties
作者:Claire Sablayrolles、Jean Claude Milhavet、Eliane Rechenq、Jean Pierre Chapat、Gerard H. Cros、Maurice Boucard、Jean J. Serrano、John H. McNeill
DOI:10.1021/jm00368a018
日期:1984.2
A series of imidazo[1,2-alpha]pyrazine derivatives was synthesized by condensation of alpha-halogenocarbonyl compounds and aminopyrazines. Various compounds resulted from competitive reactions or reagent isomerization and demonstrated in vitro uterine-relaxing and in vivo antibronchospastic activities. On isolated atria, 5-bromoimidazo-[1,2-alpha]pyrazine showed positive chronotropic and inotropic
通过α-卤代羰基化合物和氨基吡嗪的缩合合成了一系列咪唑并[1,2-α-吡嗪]衍生物。各种化合物是由竞争反应或试剂异构化产生的,并表现出体外子宫松弛和体内抗支气管痉挛活性。在分离的心房上,5-溴咪唑并[1,2-α]吡嗪表现出正变时性和变力性。后者与循环AMP组织浓度的增加有关。5-溴咪唑并[1,2-α]吡嗪对异丙肾上腺素的正性肌力作用的增强和普萘洛尔对5-溴咪唑并[1,2-α]吡嗪正性肌力的缺乏的缺乏提示磷酸二酯酶抑制性质。