(+)-Saxitoxin: A First and Second Generation Stereoselective Synthesis
作者:James J. Fleming、Matthew D. McReynolds、J. Du Bois
DOI:10.1021/ja071501o
日期:2007.8.1
A stereoselective synthesis of the bis-guanidinium toxin (+)-saxitoxin (STX), the agent infamously associated with red tides and paralytic shellfish poisoning, is described. Our approach to this unique natural product advances through an unusual nine-membered ring guanidine intermediate 39 en route to the tricyclic skeleton that defines STX. The effectiveness of this strategy is notable, as only four