Ir al contenido principal

2° SEMINARIO QUÍMICA ORGÁNICA IQUIR 2021

SEMINARIO QUÍMICA ORGÁNICA 12-04-21

EXPOSITOR: Dra. Noelia Medrán

TÍTULO: "Peptidomimetic toolbox for drug discovery. Local modifications, global restrictions"

FUENTE: (a) Elena Lenci and Andrea Trabocchi, "Peptidomimetic toolbox for drug discovery", Chem. Soc. Rev., 2020, 49, 3262-3277. (b) Adam P. Treder, Jennifer L. Hickey, Marie-Claude J. Tremblay, Serge Zaretsky, Conor C. G. Scully, John Mancuso, Annie Doucet, Andrei K. Yudin, and Eric Marsault, "Solid‐Phase Parallel Synthesis of Functionalised Medium‐to‐Large Cyclic Peptidomimetics through Three‐Component Coupling Driven by Aziridine Aldehyde Dimers", Chem. Eur. J. 2015, 21, 9249-9255.

DÍA, HORA y LUGAR: Lunes 12 de abril de 2021, 18:00 h, Plataforma MEET GOOGLE.

Linkmeet.google.com/bfh-poxv-bso

RESUMEN: (a) The art of transforming peptides into drug leads is still a dynamic and fertile field in medicinal chemistry and drug discovery. Peptidomimetics can respond to peptide limitations by displaying higher metabolic stability, good bioavailability and enhanced receptor affinity and selectivity. Various synthetic strategies have been developed over the years in order to modulate the conformational flexibility and the peptide character of peptidomimetic compounds. This tutorial review aims to outline useful tools towards peptidomimetic design, spanning from local modifications, global restrictions and the use of secondary structure mimetics. Selected successful examples of each approach are presented to document the relevance of peptidomimetics in drug discovery. (b) The first solid‐phase parallel synthesis of macrocyclic peptides using three‐component coupling driven by aziridine aldehyde dimers is described. The method supports the synthesis of 9‐ to 18‐membered aziridine‐containing macrocycles, which are then functionalized by nucleophilic opening of the aziridine ring. This constitutes a robust approach for the rapid parallel synthesis of macrocyclic peptides.





Comentarios

Entradas populares de este blog

24° SEMINARIO QUÍMICA ORGÁNICA IQUIR 2024

SEMINARIO QUÍMICA ORGÁNICA 11-11-24 EXPOSITOR :  Qca. Paula Paz Armero TÍTULO :  " Total synthesis of (±)‐decursivine via BINOL‐phosphoric acid catalyzed tandem oxidative cyclization ". FUENTE : PrakashT. Parvatkar, Eugene S. Smotkin & Roman Manetsc,  Scientific Reports volume 11, Article number: 19915 (2021) DÍA, HORA y LUGAR : Lunes 11 de noviembre de 2024, 14:00 h, Aula 18 y virtual. Modalidad virtual, Link :  meet.google.com/hjn-ygro-twf  ( Plataforma MEET GOOGLE) Resumen : The synthesis of tetracyclic indole alkaloid (±)-decursivine was accomplished using BINOL-phosphoric acid catalyzed tandem oxidative cyclization as a key step with (bis(trifuoroacetoxy)iodo)benzene (PIFA) as an oxidizing agent. This represents one of the shortest and highest yielding routes for the synthesis of (±)-decursivine from readily available starting materials.

18° SEMINARIO QUÍMICA ORGÁNICA IQUIR 2024

SEMINARIO QUÍMICA ORGÁNICA 16-9-24 EXPOSITOR :  Dr. Enrique L. Larghi TÍTULO :   " Total Synthesis of Isoxeniolide A " FUENTE :     Leo Betschart and Karl-Heinz Altmann. Angew. Chem. Int. Ed. 2024, 63, e202315423, DOI: 10.1002/anie.202315423. DÍA, HORA y LUGAR : Lunes 16 de septiembre de 2024, 14:00 h, Aula 18 y virtual. Modalidad virtual, Link :  meet.google.com/hjn-ygro-twf  ( Plataforma MEET GOOGLE) Resumen : The total synthesis of the xenicane-type marine natural product isoxeniolide A has been accomplished through a ring-opening/ring-closing metathesis sequence and an intramolecular Nozaki–Hiyama–Kishi (NHK) reaction to forge the nine-membered ring as the key enabling steps. The NHK cyclization was highly diastereoselective and provided the oxabicyclo[7.4.0]tridecene core of isoxeniolide A as a single stereoisomer.

10° SEMINARIO QUÍMICA ORGÁNICA IQUIR 2024

SEMINARIO QUÍMICA ORGÁNICA 24-6-24 EXPOSITOR :  Qco. Miguel Villarreal Parra TÍTULO :   " Nitro-Group-Containing Drugs " FUENTE :   DOI: https://doi.org/10.1021/acs.jmedchem.8b00147 Kunal Nepali, Hsueh-Yun Lee, and Jing-Ping Liou* J. Med. Chem. 2019, 62, 6, 2851–2893. DÍA, HORA y LUGAR : Lunes 24 de junio de 2024, 14:00 h, Aula 18 y virtual. Modalidad virtual, Link :  meet.google.com/hjn-ygro-twf  ( Plataforma MEET GOOGLE) Resumen :  The nitro group is considered to be a versatile and unique functional group in medicinal chemistry. Despite a long history of use in therapeutics, the nitro group has toxicity issues and is often categorized as a structural alert or a toxicophore, and evidence related to drugs containing nitro groups is rather contradictory. In general, drugs containing nitro groups have been extensively associated with mutagenicity and genotoxicity. In this context, efforts toward the structure–mutagenicity or structure–genotoxicity relationsh...