Nuphar

From N. lutea L. (Nuphar hiieum Sibth.) Achmatowicz and Mollowna obtained two alkaloids. [Pg.758]

In an approach to simple Nuphar quinolizidine alkaloids, the piperidine compound 213 was converted to compound 214 that underwent one-pot detosylation, conjugate reduction, and cyclization to produce the quinolizidin-4-one 215... [Pg.33]

Macrophytes Water lily, Nuphar luteum Whole Pondweed, Potamogeton richardsoni 0.5-1.8 DW 54... [Pg.45]

Pond lily, Nuphar sp. Ontario, Canada nickel-contaminated areas ... [Pg.473]

Rowley JR, Flynn JJ, TakahashiM. Atomic force microscope information on pollen exine substructure in Nuphar Bot Acta 1995 108 300-308. [Pg.233]

Other biologically active naturally derived thiaheterocycles include 6,6 -dihydroxythiobinupharidine, 17, a fungicide from the spatterdock or yellow pond lily (.Nuphar (47,48), griseo-... [Pg.12]

Nuphar japonicum DC N. pumilum (Timm) DC Japan Pin Peng Cao (Yellow pond lily) (seed, root) Nupharamine, sitosterol, palmitic acid, oleic acid.74 75 For digestive organs, increases body strength. [Pg.117]

Arundinaria graminifolia, Centella ascatica, Elaeagruis oldhumii, Ficus carica, Nuphar japonicum,... [Pg.483]

Joseph P.A. Harrity of the University of Sheffield has reported (J. Org. Chem. 2005, 70, 207) a complementary approach to enantiomerically-pure piperidines. Alkylated azridines such as 17 are readily available from aspartic acid. Pd-catalyzed condensation of 17 with the Trost reagent 18 was found to be most effectively mediated by bis-phosphines such as dppp , 1,3-bis-diphenylphosphinopropane. The piperidine 19 was the key intermediate for the preparation of several of the Nuphar alkaloids, including 20. [Pg.214]

These are aquatics in fresh water, used as ornamentals and found worldwide. Alkaloids are likewise known and those ot Nuphar have been described. [Pg.151]

As expected, Nuphar advena (2/2), N. luteum (5/5), and N. odo-rata (1/2) were positive, as were N. loins (1/3) and N. stelhita. Nytnphaea lulea, N. capensis, N. niaculata, and an undetermined species of Nytnphaea were negative. [Pg.151]

C NMR spectra of nine Nuphar alkaloids and of model compounds have been reported. (157) Reference to the spectra of deoxynupharidine [233], 7-epideoxynupharidine [234], and the thiomethylquinolizidines [235] and [236] illustrates the low frequency absorption of axial 13CH3 and axial 13CH2SMe nuclei in trans fused quinolizidine derivatives... [Pg.76]

The two previous reviews of Nuphar alkaloids published in this treatise covered the literature up to 1974 (7). Since then, 21 new alkaloids have been isolated and characterized. Most of these are simple variants of already known structures, and only in one case has a different ring system been discovered. [Pg.215]

For the first time, the chemistry of Nuphar alkaloids has been characterized in greater detail. The ring systems present in this group of alkaloids continue to... [Pg.215]

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