Natural Compounds and Their Structural Analogs in Regio- and Stereoselective Synthesis of New Families of Water-Soluble 2H,3H-[1,3]thia- and -Selenazolo[3,2-a]pyridin-4-ium Heterocycles by Annulation Reactions
作者:Vladimir A. Potapov、Roman S. Ishigeev、Irina V. Shkurchenko、Sergey V. Zinchenko、Svetlana V. Amosova
DOI:10.3390/molecules25020376
日期:——
products with opposite regiochemistry. Synthesis of new families of 2H,3H-[1,3]thia- and -selenazolo[3,2-a]pyridin-4-ium heterocycles has been developed by annulation reactions of 2-pyridinechalcogenyl halides with natural compounds (eugenol, isoeugenol, methyl eugenol, methyl isoeugenol, acetyl eugenol, trans-anethole) and their structural analogs. The influence of the substrate structure and the nature
已经发现丁香酚和异丁香酚衍生物以区域选择性模式与 2-吡啶硫基和 2-吡啶硒基卤化物反应,提供具有相反区域化学的产物。2H,3H-[1,3]thia-和-selenazolo[3,2-a]pyridin-4-ium 杂环的新家族的合成已经通过 2-吡啶硫属元素卤化物与天然化合物(丁香酚、异丁香酚)的环化反应而开发、甲基丁香酚、甲基异丁香酚、乙酰丁香酚、反式茴香脑)及其结构类似物。研究了底物结构和卤素的性质对产物产率的影响。与相应的溴化物相比,2-吡啶硫基氯化物和 2-吡啶硒基氯化物是更有效的试剂。所获得的稠合杂环是具有良好生物活性的新型水溶性官能化化合物。