... 695-698, 1984. (C) The Chemical Society of Japan 1984 SYNTHESIS OF CEMBRA-3E,7E,11E, 15(17)-TETRAEN-cis-16,2-OLIDE1) Mario AOKI, Tadao UYEHARA, and Tadahiro KATO* Department of Chemistry, Faculty of Science, Tohoku University, Sendai 980 ... rotation. 9,10) References 1) This constitutes part 39 of the series of "Cyclization of Polyenes". Part 38, M. Aoki, T. Uyehara, T. Kato, K. Kabuto, and S. Yamaguchi, Chem. Lett., 1983, 1121. ...