نتایج جستجو برای: morphinane alkaloids
تعداد نتایج: 14574 فیلتر نتایج به سال:
Different classes of known alkaloid compounds were identified for the first time in leaves and barks of Ficus benjamina L. from Moraceae family. The identification of 28 alkaloids in F. benjamina leaves and 14 alkaloids in its barks was identified using chromatographic analysis as Gas Chromatography associated to Mass Spectrometry (GC-MS). This characterization analysis allows to verifying the ...
Thirteen alkaloids have been isolated from dried bulbs and leaves of flowering Eucharis amazonica (Amaryllidaceae). The alkaloids, 7-methoxyoxoassoanine, 6-O-methylpretazettine and apohaemanthamine, are reported for the first time from a natural source.
The microbial transformation of four Cinchona alkaloids (quinine, quinidine, cinchonidine, and cinchonine) by endophytic fungi isolated from Cinchona pubescens was investigated. The endophytic filamentous fungus Xylaria sp. was found to transform the Cinchona alkaloids into their 1-N-oxide derivatives.
Laboratory cultures of the fungus Plectosphaerella cucumerina obtained from marine sediments collected in Barkley Sound, British Columbia, yielded the novel alkaloids plectosphaeroic acids A (1) to C (3). The alkaloids 1-3 are inhibitors of indoleamine 2,3-dioxygenase (IDO).
The taxonomic distribution, structure, and biological activity of halogenated alkaloids isolated from marine microorganisms and sponges are reviewed. The structures of nearly 140 natural bromoand iodo-containing alkaloids are shown.
Introduction: peganum harmala L. (Zygophyllaceae) and varthemia persica DC (Compositeae) were used for co-culture studies. P.harmala was found to be one of the richest natural sources of β-carboline alkaloids. β-carboline alkaloids posses different neuropharmacologic activities including BDZ antagonism, MAOinhibitor and aminoreuptake inhibitor. The production of β-carboline alkaloids in cell ...
Background & Aim: Papaver bracteatum Lindl. (Papaverace) is an important pharmaceutical plant which contains isoqinoline alkaloids. Isoqinoline alkaloids constitute one distinct group of secondary metabolites of the Papaverace family. Codeine and thebaine are important alkaloids of Papaver bracteatum which use widely due to its medicinal properties. Therefore it is...
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