Table of Contents

Total Synthesis of Decanolides (Nonanolides) with a Special Focus on Olefin Metathesis.- From Plant to Patient: Thapsigargin.- Antileishmanial Activity of Lignans and Neolignans.- Cryptolepine as a Lead to new Antiprotozoal Agents.- Biologically Active Constituents from Plants of the Genus Xanthium.