2-Aminothiophene scaffolds: Diverse biological and pharmacological attributes in medicinal chemistry

K Bozorov, LF Nie, J Zhao, HA Aisa - European journal of medicinal …, 2017 - Elsevier
Aminothiophenes are important five-membered heterocyclic building blocks in organic
synthesis, and the chemistry of these small molecules is still developing based on the …

Recent contribution of medicinally active 2-aminothiophenes: A privileged scaffold for drug discovery

V Duvauchelle, P Meffre, Z Benfodda - European Journal of Medicinal …, 2022 - Elsevier
In medicinal chemistry, 2-aminothiophene is a central five-membered heterocyclic core that
is mostly synthesized using Gewald methodology. Its incorporation into a molecule can …

Antimicrobial and antioxidant flavonoids from the leaves of Oncoba spinosa Forssk. (Salicaceae)

MG Djouossi, JD Tamokou, D Ngnokam… - … and alternative medicine, 2015 - Springer
Background Naturally occurring flavonoids have been reported to possess various
pharmacological properties. The aim of this study was to evaluate the antimicrobial and …

Synthesis and antinociceptive activity of nitriles, esters, and amides of 2-amino-1-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)-4-oxo-5-(2-oxo-2-arylethylidene)-4,5 …

DV Lipin, KY Parkhoma, VM Shadrin… - Russian Chemical …, 2023 - Springer
Synthesis of nitriles, esters, amides of the substituted 2-amino-1-(4, 5, 6, 7-tetra-hydrobenzo
[b] thiophen-2-yl)-4-oxo-5-(2-oxo-2-arylethylidene)-4, 5-dihydro-1 H-pyrrole-3-carboxylic …

Highly enantioselective catalytic vinylogous propargylation of coumarins yields a class of autophagy inhibitors

H Xu, L Laraia, L Schneider, K Louven… - Angewandte Chemie …, 2017 - Wiley Online Library
A highly enantioselective copper‐catalyzed vinylogous propargylic substitution has been
developed. Aromatic and aliphatic propargylic esters react smoothly with substituted …

Access to 2‐Amino‐3‐Arylthiophenes by Base‐Catalyzed Redox Condensation Reaction Between Arylacetonitriles, Chalcones, and Elemental Sulfur

TTT Nguyen, VA Le, P Retailleau… - Advanced Synthesis & …, 2020 - Wiley Online Library
A straightforward access to 2‐amino‐3‐arylthiophenes has been developed via one‐pot two‐
step three‐component reaction of arylacetonitriles, chalcones and elemental sulfur. The first …

One‐Pot Access to Tetrasubstituted 2‐Aminothiophenes via Regio‐and Chemoselective Domino Reactions of Dithioesters with Fumaronitrile at Room Temperature

AK Yadav, V Kumar, P Pali, S Ray… - Advanced Synthesis …, 2023 - Wiley Online Library
Herein, we report a one‐pot viable protocol to synthesize tetrasubstituted 2‐
aminothiophenes engaging readily accessible α‐enolic dithioesters and abundant …

Synthesis and anti-inflammatory activity of 4-aryl-2-[(3-cyanothiophen-2-yl) amino]-4-oxobut-2-enoates

YO Sharavyeva, IA Gorbunova, RR Makhmudov… - Russian Chemical …, 2023 - Springer
Aryl-4-oxo-2-(thiophen-2-ylamino) but-2-enoates bearing a cyano functional group at the
thiophene ring were synthesized by the reaction of the corresponding substituted 3 …

Iridium-catalyzed enantioselective direct vinylogous allylic alkylation of coumarins

R Sarkar, S Mitra, S Mukherjee - Chemical Science, 2018 - pubs.rsc.org
The first iridium-catalyzed enantioselective vinylogous allylic alkylation of coumarins is
presented. Using easily accessible linear allylic carbonates as the allylic electrophile, this …

Exploiting Distal Reactivity of Coumarins: A Rhodium‐Catalyzed Vinylogous Asymmetric Ring‐Opening Reaction

CCJ Loh, M Schmid, B Peters, X Fang… - Angewandte Chemie …, 2016 - Wiley Online Library
While the utility of vinylogous enolates is well established in the setting of vinylogous aldol,
Mannich, and Michael chemistries, literature reports concerning γ‐reactivity are scarce for …