Journal
PHYTOCHEMISTRY
Volume 58, Issue 2, Pages 299-304Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0031-9422(01)00203-5
Keywords
Potamogeton natans; Potamogetonaceae; Raphidocelis subcapitata; ent-labdanes; furano-diterpenes; antialgal activity; spectroscopic analysis
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Six furano-ent-labdanes, 19-acetoxy-15,16-epoxy-8(17),13(16),14-ent-labdatrien-20-al, 15,16-epoxy-12-oxo-8(17),13(16),14-ent-labdatrien-20,19-olide, 12(S)-hydroxy-15,16-epoxy-8(17),13(16),14-ent-labdatrien-20,19-olide, 10 alpha ,19-dihydroxy-15,16-epoxy-8(17), 13(16),14-nor-ent-labdatriene, 19,20-dihydroxy-15,16-epoxy-8(17),13(16),14-ent-labdatriene, 15,16-epoxy-12-oxo-8(17),13(16),14-ent-labdatrien-19,20-olide, were isolated, together with the known potamogetonin, from the aquatic plant Potamogeton natans. Their structures were determined on the basis of their chemical and spectral data. The compounds showed in vitro phytotoxicity against Raphidocelis subcapitata, a microalga used in aquatic tests. (C) 2001 Elsevier Science Ltd. All rights reserved.
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