Thiacyclols and Cyclothiodepsipeptides^†‡

Part 13 of Reactions with Activated Amides. – Part 12: M. Rothe, Angew. Chem. 80, 245 (1968); Angew. Chem. internat. Edit. 7, 233 (1968).

We thank the Deutsche Forschungsgemeinschaft and the Fonds der Chemischen Industrie for financial support, Farbwerke Hoechst AG for awarding the Karl-Winnacker grant to M.R., and the Dr.-G.-Scheuing-Stiftung for a grant to R.St.