Synthesis of thiazole derivatives bearing an incorporated Z-5-aminopent-3-enoic acid fragment
作者:Alexander G. Zavozin、Nikolai V. Ignat'ev、Michael Schulte、Sergei G. Zlotin
DOI:10.1016/j.tet.2013.06.060
日期:2013.8
Novel compounds bearing a joint thiazole and a Z-5-aminopent-3-enoic acid fragments have been synthesized from readily accessible 5-bromolevulinic esters through a sequence of nucleophilic substitution, bromination, Hantzsch-type heterocyclization and Gabriel-like deprotection reactions. A majority of these reactions proceed in ionic liquid media that enhances their efficiency and selectivity in comparison
通过一系列亲核取代,溴化,汉兹施型杂环化和加百列样脱保护反应,从易于获得的5-溴乙酰丙酸酯中合成了带有噻唑和Z -5-氨基戊-3-烯酸联合片段的新型化合物。这些反应中的大多数在离子液体介质中进行,与常规有机溶剂中的相应反应相比,离子液体介质可提高其效率和选择性。这些化合物具有显着的药学潜力。