... (C) The Chemical Society of Japan 1984 THE TOTAL SYNTHESIS OF (+)-MEGAPHONE, A CYTOTOXIC NEOLIGNAN Takashi MATSUMOTO,* Sachihiko IMAI, Shuji USUI, Akira SUETSUGU, Shunzi KAWATSU, and Tadashi YAMAGUCHI Department of Chemistry, Faculty of Science, Hiroshima University, Higashisenda-machi, Naka-ku, Hiroshima 730 The racemic megaphone, a cytotoxic neolignan, has been synthe- ...