[Contributions to the Structure of Hypercratine, another Alkaloid of Ruspolia hypercrateriformis.].
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.
Neukomm
G
G
Organisch-chemisches Institut der Universität Zürich, Schweiz.
Roessler
F
F
Johne
S
S
Hesse
M
M