Synthesis, ex vivo and in silico studies of 3-cyano-2-pyridone derivatives with vasorelaxant activity
作者:Fernando Hernández、Arturo Sánchez、Priscila Rendón-Vallejo、César Millán-Pacheco、Yolanda Alcaraz、Francisco Delgado、Miguel A. Vázquez、Samuel Estrada-Soto
DOI:10.1016/j.ejmech.2013.10.018
日期:2013.12
and simple synthesis of 3-cyano-2-pyridone derivatives (6a–f) through 3,4-dihydropyridin-2-one oxidation process is described. A greener method to synthesize 3,4-dihydropyridin-2-one has also been developed by rearranging 4H-pyran (4a–f) derivatives in aqueous medium applying H2SO4 as the catalyst source and microwave irradiation. The vasorelaxant activity of 3-cyano-2-pyridone derivatives (6a–f) was
描述了通过3,4-二氢吡啶-2--2-氧化方法有效而简单地合成3-氰基-2-吡啶酮衍生物(6a – f)。通过以H 2 SO 4为催化剂源和微波辐射在水介质中重排4 H-吡喃(4a - f)衍生物,还开发了一种更环保的3,4-二氢吡啶-2-酮合成方法。3-氰基-2-吡啶酮衍生物(6a – f)在去甲肾上腺素(0.1μM)预收缩的分离的胸主动脉大鼠环上有或没有内皮(分别为+ E和-E)证明。所有化合物均表现出显着的浓度依赖性和内皮依赖性血管舒张作用,其中硝基衍生物(6a和f)和化合物6d最有效,EC 50分别为7、4.4和5μM。最后,将先前描述的人L型钙通道(LCC)中心孔的3D模型修改为与亚基α-1F亚型1的NCBI序列NP_005174.2一致,将其用于对接大多数活性化合物。6a,d和f发现最低的亲和能结构停靠在由IS6,IS5,IP和IIS6螺旋线相符的同一个空腔中。在由IIS6,I