Synthetic Studies on the Ochtodane Type Terpenes II. Synthesis of Pleraplysillin-1
A furyl sesquiterpene pleraplysillin-1 (1), which posseses the ochtodane skeleton (2) in the molecule, was synthesized regio- and stereoselectively starting from the ochtodane type monoterpene (5).Two approaches were investigated: One is the route by way