作者:Christoph Hirschhäuser、Claire A. Haseler、Timothy Gallagher
DOI:10.1002/anie.201100441
日期:2011.5.23
Getting down to the core: A novel, modular, and more robust synthesis of cytisine, a partial agonist selective for the α4β2 nicotinic acetylcholine receptor, also allows modification of the core structure, as exemplified by the first azacytisine and a cytisine–varenicline hybrid. Key steps include Stille coupling of heteroarylstannanes with a bromolactam motif and an in situ epimerization/alkylative
深入核心:新的,模块化的,功能更强的半胱氨酸合成物,对α4β2烟碱乙酰胆碱受体有选择性的部分激动剂,也可以修饰核心结构,如第一个氮杂胞苷和半胱氨酸-缬氨酸混合物。关键步骤包括杂芳基锡烷与溴内酰胺基的Stille偶联和原位差向异构化/烷基化环化以完成三环核心(请参阅方案)。