title: [Contributions to the Structure of Hypercratine, another Alkaloid of Ruspolia hypercrateriformis.].
abstract: Besides the known pyrrolidine alkaloids ruspolinone ( 1), norruspolinone ( 2), and norruspoline ( 3) the "bispyrrolidine" alkaloid hypercratine was isolated from the roots of RUSPOLIA HYPERCRATERIFORMIS M. R. (Acanthaceae). After chemical and spectroscopic analysis of the new compound, structure 4 is suggested.
authors.affiliation: Organisch-chemisches Institut der Universität Zürich, Schweiz.
authors.forename: G
authors.initials: G
authors.lastname: Neukomm
authors.forename: F
authors.initials: F
authors.lastname: Roessler
authors.forename: S
authors.initials: S
authors.lastname: Johne
authors.forename: M
authors.initials: M
authors.lastname: Hesse