CHEMISTRY LETTERS, pp. 167-170, 1992. 1992 The Chemical Society of Japan Total Synthesis of (+)-Bicyclohumulenone Yoshiyasu FUKUYAMA, Motoko HIRONO, and Mitsuaki KODAMA* Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 7 70 (+)-Bicyclohumulenone, a bicyclic sesquiterpene isolated from liverworts, was synthesized using stereoselective Simmons- Smith cyclopropanation and intramolecular alkylation of ...