1. TerraMarine Pharmaceuticals, New Zealand Institute for Crop & Food Research Ltd, Chemistry Department, University of Otago, P.O. Box 56, Dunedin, New Zealand, Malaghan Institute of Medical Research, P.O. Box 7060, Wellington South, New Zealand, and National Institute of Water & Atmospheric Research (NIWA) Ltd, P.O. Box 14-901, Kilbirnie, Wellington, New Zealand