Institution: | 1. Laboratory of Synthesis and Natural Products, Ecole Polytechnique Fédérale de Lausanne, EPFL‐SB‐ISIC‐LSPN, BCH 5304, 1015 Lausanne (Switzerland) http://lspn.epfl.ch;2. Centre de Recherche de Gif, Laboratoire International Associé, Institut de Chimie des Substances Naturelles, CNRS, 91198 Gif‐sur‐Yvette Cedex (France) |