New methods are developed for the determination of cinnarizine in various dosage forms.
They are based on the reaction of cinnarizinium cation with cobalt tetrathiocyanate anion …

Spin-labeled cytisine derivatives containing stable pyrrolidine and piperidine nitroxyl
radicals were synthesized by acylation and alkylation of the secondary amine. Toxicological …

Synthesis and biological activity of <Emphasis Type="Italic">N</Emphasis>-benzyl derivatives
of cytisine Page 1 1) S. Yu. Yunusov Institute of the Chemistry of Plant Substances, Academy of …

Screening for pyrrolizidine alkaloids in plant materials by electron ionization RPâ•’HPLCâ•’MS
with thermabeam interfa Page 1 Copyright © 2004 John Wiley & Sons, Ltd. Biomed. Chromatogr …

Pyrrolizidine alkaloids: Testing for toxic constituents of comfrey Page 1 Pyrrolizidine Alkaloids:
Testing for Toxic Constituents of Comfrey John J. Vollmer, Noemi C. Steiner, Gitte Y. Larsen …

The fragmentation of cavinineâ•fia new amaryllis alkaloid in the crinine series Page 1 Organic
Mass Spectrometry, 1975, Vol. pp. 427 to 431. @Heyden & Son Limited. Printed in Northern …

Quinones are a class of natural and synthetic compounds that have several beneficial
effects. Quinones are electron carriers playing a role in photosynthesis. As vitamins, they …

With the aim of the radiolabeling of cytisine, a potent agonist of nicotinic receptors, with [11C]
phosgene, the rapid synthesis of a lactam model of our target has been studied. The key …

A sensitive and selective chemiluminescence assay for the determination of quinones was
developed. The method was based on generation of reactive oxygen species through the …

A COLOR TEST FOR CERTAIN PIPERIDINE AND PYRROLIDINE ALKALOIDS Page 1 NOTES
1229 A COLOR TEST FOR CERTAIN PIPERIDINE AND PYRROLIDINE ALKALOIDS* The …