Citation: Jl. Acena et al., A new and expeditious entry to 7-oxabicyclo[3.2.1]octan-8-ol and 2-oxabicyclo[3.3.1]nonan-9-ol skeletons via intramolecular Michael addition-S(N)2 ' ring opening of 7-oxabicyclic sulfones, TETRAHEDR L, 41(15), 2000, pp. 2549-2551