Molluscicidal activity of naphthylisoquinoline alkaloids from Triphyophyllum and Ancistrocladus species.
The naphthylisoquinoline alkaloids dioncophylline A (1) and 5'-O-demethyl-8-O-methyl-7-epi-dioncophylline A (2) represent a new structural type of molluscicidal compounds and the active principle of extracts of the tropical lianas Ancistrocladus abbreviates and Triphyophyllum peltatum. The activity of 1 was further improved by derivatization.
Bringmann
G
G
Institut für Organische Chemie, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany.
Holenz
J
J
Assi
L A
LA
Zhao
C
C
Hostettmann
K
K