... Download full text in PDF. Tetrahedron Letters,Vol.26,No.16,pp 1989992,1985 0040039/85 $3.00 .00 Printed in Great Britain 985 Pergamon Press Ltd. SYNTHESES OF (-PYRENOPHORIN AND (-COLLETALLOL Takeshi Wakamatsu,* Satoshi Yamada, Yoshiko Ozaki, and Yoshio Ban Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060, Japan Summary: Pyrenophorin land colletallol 3 were synthesized in their racemic forms from the ...