[Further acylated chalcones from Bidens pilosa].
Three new acylated chalcone glucosides [okanin 4'- O-beta- D-(4''-acetyl-6''- TRANS- P-coumaroyl)-glucoside, okanin 4'- O-beta- D-(2'',4''-diacetyl-6''- TRANS- P-coumaroyl)-glucoside, and okanin 4'- O-beta- D-(3'',4''-diacetyl-6''- TRANS- P-coumaroyl)-glucoside] have been isolated from the leaves of BIDENS PILOSA L. (Asteraceae). Their structures have been elucidated by spectroscopic methods ( (1)H-NMR, 2D- (1)H-NMR, (13)C-NMR spectroscopy).
Hoffmann
B
B
Institut für Pharmazeutische Biologie der Universität Marburg, Deutschhausstr. Marburg/L., Federal Republic of Germany.
Hölzl
J
J