Pierre Vogel
The lithium enolate 16 derived in 5 steps from the Diels-Alder adduct of furan to 1-cyanovinyl (1S)-camphanate [(+)-12: a "naked sugar" of the first generation] was reacted with (+)(1R,4S,5S,6S)-6-endo-chroro-3-methylidene-5-exo-phenylseleno-7-oxabic yclo[ ...
1999