Effects of plant extracts and derivatives on cardiac K, Nav, and Ca channels: a review.

Natural products (NPs) are endless sources of compounds for fighting against several pathologies. Many dysfunctions, including cardiovascular disorders, such as cardiac arrhythmias have their modes of action regulation of the concentration of electrolytes inside and outside the cell targeting ion channels. Here, we highlight plant extracts and secondary metabolites' effects on the treatment of related cardiac pathologies on hERG, Nav, and Cav of cardiomyocytes.

Advances Toward Amphidinolides C, F and U: Isolations, Synthetic Studies and Total Syntheses.

Amphidinolides C, F, and U, including C2-C4 analogs, are highly cytotoxic marine macrolides, mainly isolated from dinoflagellates of the genus Amphidinium. All these polyketides share a 75 % or more similar structure, highlighted by a macrolactone ring, at least one trans-2,5-substituted-THF motif and a characteristic polyenic side chain. From their isolation and absolute configurational assignment, the total synthesis of these marine macrolides represented an intense challenge to the organic synthesis community over the last 15 years, with around 14 research groups engaged in this inspiring task.

Chemical Constituents and Antimicrobial and Antioxidant Activities of Essential Oil from Dried Seeds of .

The study aimed to investigate the chemical composition and antimicrobial and antioxidant activities of the essential oil from dried seeds of . The essential oil was obtained by hydrodistillation and analyzed by GC/FID and GC/MS. The essential oil yield was 1.

Amphidinolides F and C2: An Odyssey in Total Synthesis.

Amphidinolides F, C, C2, and C3 are marine natural products isolated from dinoflagellates species. They share the same macrolactone core, with the difference between them residing at the side chain level. A predominant feature of these amphidinolides is the presence of two -THF rings inside the macrolactone core, which is thought to be built by C-glycosylation with titanium enolate of -acetyl oxazolinethiones.

Synthesis, Characterization and Antimicrobial Activities of 1,4- Disubstituted 1,2,3-Triazole Compounds.

Background: 1,2,3-triazoles are five-membered heterocyclic scaffold; their broad-spectrum biological activities are known. Researchers around the world are increasingly being interested in this emerging area, owing to its immense pharmacological scope.

Objective: This work summarizes the synthesis of 1,2,3-triazoles and the significance of this pattern as a lead structure for new drug molecules discovery.

Access to a Library of 1,3-disubstituted-1,2,3-triazenes and Evaluation of their Antimicrobial Properties.

Background: Due to the rapid development of microbial resistance, finding new molecules became urgent to counteract this problem.

Objective: The objective of this work is to access 1,2,3-triazene-1,3-disubstituted, a class of molecule with high therapeutic potential.

Methods: Here we describe the access to 17 new triazene including six with an imidazole-1,2,3-triazene moiety and eleven with an alkyl-1,2,3-triazene moiety and their evaluation against five strains: two gram (-): Escherichia coli ATCC 25921 and Pseudomonas aeruginosa ATCC 27253; two gram (+) : Staphylococcus aureus ATCC 38213 and Enterococcus faecalis ATCC 29212; and one fungi: Candida albicans ATCC 24433.