title: Hexacyclinic acid, a Polyketide from Streptomyces with a Novel Carbon Skeleton We express our thanks to Hoechst AG (Frankfurt) for providing us with Streptomyces cellulosae (strain S 1013) and Mr. M. Decke for excellent technical assistance. We wish to thank Prof. Dr. W. Beil for determining the cytotoxic activity. This work was supported by the Fonds der Chemischen Industrie.
authors.affiliation: Institut für Organische Chemie Universität Göttingen Tammannstrasse 2, 37077 Göttingen (Germany).
authors.initials: R
authors.lastname: Höfs
authors.initials: M
authors.lastname: Walker
authors.initials: A
authors.lastname: Zeeck