Synthetic Studies towards Pectenotoxin-2: Synthesis of the Nonanomeric 10-epi-ABCDE Ring Segment by Kinetic Spiroketalization
作者:Jatta E. Aho、Antti Piisola、K. Syam Krishnan、Petri M. Pihko
DOI:10.1002/ejoc.201001411
日期:2011.3
The synthesis of the nonanomeric10-epi-ABCDEring system of pectenotoxin-2 has been achieved by using a kineticspiroketalization reaction. The synthesis of the spiroketalization precursor was achieved through a cross-metathesis/hydro-genation sequence. The formation of the epi-C10 isomer resulted from an unexpected anti-Felkin selective addition of organometallic nucleophiles to the advanced CDE