title: Herbarulide, a ketodivinyllactone steroid with an unprecedented homo-6-oxaergostane skeleton from the endophytic fungus pleospora herbarum1
abstract: The novel ketodivinyllactonic steroid, herbarulide (1), deviating from the brassinosteroids in the position of the oxygen, was isolated from the endophytic fungus Pleospora herbarum. The structure was determined by extensive NMR studies, including particularly HMQC and HMBC experiments.
authors.affiliation: Fachbereich Chemie und Chemietechnik der Universitat-Gesamthochschule Paderborn, Warburger Strasse 100, D-33098 Paderborn, Germany, and Institut fur Mikrobiologie der Technischen Universitat Braunschweig, Spielma.
authors.initials: K
authors.lastname: Krohn
authors.initials: C
authors.lastname: Biele
authors.initials: HJ
authors.lastname: Aust
authors.initials: S
authors.lastname: Draeger
authors.initials: B
authors.lastname: Schulz