(2) J. Trofast and B. Wickberg, Tetruhedron, 33, 875 (1977).(3) KK Chexal, C. Tamm, J. Clardy, and K. Hirotsu, Hefu. Chim. Acfa, 62, 1129 (1979).(4)(a) P. Bollinger and T. Zardin- Tartaglia, Helu. Chim. Acta, 59, 1809 (1976).(b) HP Weber and TJ Pechter, ibid., 59, 1821 (1976).(5) The structure given for the mikrolins and gilmicolin were drawn to emphasize the similarity of their enedione functionality to that of mycorrhizin. In fact, these compounds ...