A palladium-catalyzed synthetic approach to new Huperzine A analogues modified at the pyridone ring
作者:Sandra Gemma、Stefania Butini、Caterina Fattorusso、Isabella Fiorini、Vito Nacci、Katherine Bellebaum、Down McKissic、Ashima Saxena、Giuseppe Campiani
DOI:10.1016/s0040-4020(02)01449-7
日期:2003.1
The synthesis of two new Huperzine A analogues is reported. Both products present an amino substituted benzo-fused system in place of the pyridone ring of the natural alkaloid. The synthetic strategy to the two analogues is based on three different key palladium-catalyzed steps, namely a carbonylation reaction, an epoxide isomerization and a bicycloannulation reaction.
据报道,合成了两个新的石杉碱甲类似物。两种产品均具有氨基取代的苯并稠合系统,以取代天然生物碱的吡啶酮环。两种类似物的合成策略基于钯的三个关键关键步骤,即羰基化反应,环氧化物异构化和双环环化反应。