Total synthesis of (−)-dysibetaine via a nitrenium ion cyclization–dienone cleavage strategy
作者:Duncan J. Wardrop、Matthew S. Burge
DOI:10.1039/b403081h
日期:——
The diastereoselective totalsynthesis of the marine natural product (-)-dysibetaine is reported. The key steps in this venture are i) a diastereoselective nitrenium ion spirocyclization, which serves to generate the pyrrolidinone ring and quaternary stereocenter of the target, and ii) use of the 2-methoxycyclohexa-2,5-dienone ring formed during cyclization as a masked 2-amino-1,3-dicarbonyl synthon