Strychnos 1990 - 2004 - Crops for the Future

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Author Title Year Source title Reference Rafatro, H., R. K. Verbeeck, T. Y. R. Gougnard, P. J. M. De Jonghe, P. Rasoanaiv Isolation from rat urine and human liver microsomes and identification by electros 2000 Journal of Mass Spectrometry 35(9) : 1112-1120 Abstract Malagashanine has been isolated from indigenous madagasean Strychnos myrtoides alkaloids used traditionally to treat malaria, This alkaloid was found to enhance the action of chloroquine against chloroquine-resistant strains of Plasmodium falciparum when combined with classical antimalarial drugs (chloroquine, quinine), The present study was carried out in order to investigate by electrospray mass and tandem mass spectrometry and NMR spectroscopy the structure of two new metabolites isolated from rat urine and human liver microsomes, We were able to demonstrate the presence of two new metabolites of malagashanine corresponding to a malagashanine N- demethylated metabolite and to the oxidation of malagashanine in the alpha-position of the N-methyl group to produce a carbinolamine function. The latter metabolite may be subject to ring and openchain tautomerism effects and dimeric species were detected in the electrospray mass spectrum. C o p y r i g h t ( C ) 2 0 0 0 J o h n W i l e y & S o n s , L t d . Author Title Year Source title Reference Rukuni D Analysis of fruit traits of Strychnos cocculoides: An important indigenous fruit tre 2000 Tree Seed News 2: 5-7 Abstract An analysis is presented of fruit traits of Strychnos cocculoides collected from 18 provenances in Zimbabwe. The fruits were characterized for fruit weight and diameter, weight of edible pulp, total weight of seed, weight and thickness of shell, number of seeds per fruit, the percent total soluble solids or brix, and 1000-seed weight. The ratio of the edible part of the fruit was also determined based on measurements of the weight of internal fruit contents and total seed weight.
Author Title Year Source title Reference Abstract Sierra, M. A. and M. C. de la Torre Dead ends and detours en route to total syntheses of the 1990s 2000 Angewandte Chemie-International Edition 39(9): 1538-1559 - Author Title Year Source title Reference Sole, D., E. Peidro and J. Bonjoch Palladium-catalyzed intramolecular coupling of vinyl halides and ketone enolates, 2000 Organic Letters 2(15): 2225-2228 Abstract [GRAPHICS] - The palladium-mediated intramolecular coupling of amino-tethered vinyl halides and ketone enolates is a useful methodology for the synthesis of nitrogen heterocycles and constitutes a new synthetic entry to the 2-azabicyclo[3.3.1]nonane framework, A study about the reaction conditions and the scope of the process is reported.
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Strychnos 1990 - 2004 - Crops for the Future

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