Structures and allelopathic effects ofNuphar alkaloids: Nupharolutine and 6,6′-dihydroxythiobinupharidine
- 1 December 1996
- journal article
- Published by Springer Nature in Journal of Chemical Ecology
- Vol. 22 (12) , 2209-2219
- https://doi.org/10.1007/bf02029541
Abstract
Two of the majorNuphar alkaloids, nupharolutine and 6,6′-dihydroxythiobinupharidine, were isolated from the aquatic perennial herbNuphar lutea (L.) Sibth. & Sm., yellow water lily. In a lettuce seedling bioassay of the two pure compounds, the former was inactive and the latter was highly inhibitory of radicle elongation at concentrations greater than 2 ppm. Structures and stereochemistry of the two compounds were confirmed by DEPT,1H-1H COSY,1H-13C COSY, and1H-1H NOESY experiments.Keywords
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