title: Indole Alkaloids from Catharanthus roseus Tissue Cultures IV1: 16R-19,20-E-Isositsirikin, 16R-19,20-Z-Isositsirikin and 21-Hydroxycyclolochnerin.
abstract: From CATHARANTHUS ROSEUS cell suspension cultures 16 R-19,20- E-isositsirikine ( 1), 16 R-19,20- Z-isositsirikine ( 2) and a new sarpagine type indole alkaloid ( 5) have been isolated. The structures have been deduced from spectroscopic data; that of 5 has been confirmed by X-ray analysis.
authors.affiliation: GBF, Gesellschaft für Biotechnologische Forschung mbH, Abt. Naturstoffchemie, Mascheroder Weg 1, D-3300 Braunschweig.
authors.forename: W
authors.initials: W
authors.lastname: Kohl
authors.forename: B
authors.initials: B
authors.lastname: Witte
authors.forename: W S
authors.initials: WS
authors.lastname: Sheldrick
authors.forename: G
authors.initials: G
authors.lastname: Höfle