The tropane alkaloid anisodamine ( 2) is obtained by 6 beta-hydroxylation of hyoscyamine ( 1). The application of this alkaloid in medicine is gaining attention due to the wide range of therapeutic applications described in addition to its anticholinergic activity. In this work, the production of anisodamine ( 2) by IN VITRO cultures of BRUGMANSIA CANDIDA (Argentinean and Colombian samples) was...

Plants are the important sources of drugs. Secondary metabolites are responsible for therapeutic propertiesin plants. Three compounds including (-)-hyoscyamine, its racemate atropine, and scopolamine (hyoscine) are the most famous tropane alkaloids in the Solanaceae familly. Nowadays, attempts to developthese alkaloids in biotechnological procedures which are principally based on the hairy root...

This study was undertaken to characterize pharmacologically the negative chronotropic and antiarrhythmic action of atropine and other tropane analogues. Insight into the site of action of these drugs was obtained by comparing the effects on isolated heart preparations. Dose-response curves were constructed for the negative chronotropic action on the cat Langendorff preparation and refractory pe...

The photochemical C-C bond cleavage of bicyclic aziridines 7 and subsequent [3 + 2] cycloaddition with electron-deficient alkenes and alkynes afforded the novel head-to-head adducts selectively and efficiently. The adducts contain the naturally occurring 8-azabicyclo[3.2.1]octane skeleton (e.g. tropane alkaloids). The aziridine 8 fused with a 6-membered ring also afforded the cycloadducts but i...

The interest in tropane alkaloids (TA) as food contaminants is increasing. A sensitive and selective LC-MS/MS method was applied for the analysis of corn puff samples from Serbian market. Only atropine quantified 22% samples. In case scopolamine, although not quantified, it detected Whether acute reference dose (ARfD) could be exceeded checked on a case-by-case basis individual products under a...

Theory predicts patterns of defense across taxa based on notions of tradeoffs and synergism among defensive traits when plants and herbivores coevolve. Because the expression of characters changes ontogenetically, the evolution of plant strategies may be best understood by considering multiple traits along a trajectory of plant development. Here we addressed the ontogenetic expression of chemic...