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9 Results Found

  • Article
  • Open Access
7 Citations
6,878 Views
27 Pages

7 October 2014

A series of novel stereochemically pure derivatives of the investigative broad-spectrum anticonvulsant ADD408003 was designed and synthesized. Five-center four-component (U-5C-4CR) and four-center three-component (U-4C-3CR) variants of Ugi reaction...

(This article belongs to the Section Medicinal Chemistry)
  • Review
  • Open Access
491 Citations
26,145 Views
14 Pages

31 January 2003

The first century of isocyanide chemistry, which was then still a rather empty part of Organic Chemistry, began in 1859. In 1958 isocyanides became generally available by dehydration the formylamines. One year later the four component reaction of iso...

(This article belongs to the Special Issue Selected Papers from the International Symposium on Frontiers in Molecular Science (ISFMS 2002))
  • Proceeding Paper
  • Open Access
2 Citations
2,286 Views
6 Pages

Synthesis of Bis-Amides Employing a Plant-Derived Triterpenoid as Component in the Ugi Reaction

  • Fidel Rodríguez-López,
  • Hugo A. García-Gutiérrez and
  • Rocío Gámez-Montaño

14 November 2022

Herein we describe the synthesis of a series of four novel triterpenoid-derived bis-amides, employing masticadienonic acid from Pistacia mexicana as a carboxylic acid component in the Ugi reaction. Products were obtained via a facile and efficient on...

(This article belongs to the Proceedings of The 26th International Electronic Conference on Synthetic Organic Chemistry)
  • Feature Paper
  • Review
  • Open Access
10 Citations
9,701 Views
40 Pages

α-Amino Acids as Synthons in the Ugi-5-Centers-4-Components Reaction: Chemistry and Applications

  • Sveva Pelliccia,
  • Ilenia Antonella Alfano,
  • Ubaldina Galli,
  • Ettore Novellino,
  • Mariateresa Giustiniano and
  • Gian Cesare Tron

15 June 2019

Since the first reports, the Ugi four-component reaction (U-4CR) has been recognized as a keystone transformation enabling the synthesis of peptide mimetics in a single step and with high atom economy. In recent decades, the U-4CR has been a source o...

(This article belongs to the Section D: Chemistry: Symmetry/Asymmetry)
  • Review
  • Open Access
157 Views
28 Pages

Isocyanide-Based Multicomponent Reactions as Synthetic Tools for the Semisynthesis of Bioactive and Bioactive-Oriented Compounds

  • Abel Suárez-Castro,
  • Camila Garibay-Manríquez,
  • Alejandro Islas-Jácome,
  • Perla Islas-Jácome,
  • Eduardo González-Zamora,
  • Luis Chacón-García and
  • Carlos J. Cortés-García

12 October 2026

Natural products remain privileged starting points in drug discovery because of their structural complexity, stereochemical richness, and bioactive scaffolds. Semisynthesis enables the transformation of natural products or naturally occurring precurs...

  • Communication
  • Open Access
7 Citations
2,925 Views
12 Pages

A Facile Ugi/Ullmann Cascade Reaction to Access Fused Indazolo-Quinoxaline Derivatives with Potent Anticancer Activity

  • Yong Li,
  • Liujun He,
  • Hongxia Qin,
  • Yao Liu,
  • Binxin Yang,
  • Zhigang Xu and
  • Donglin Yang

17 January 2024

A facile methodology for the construction of a complex heterocycle indazolo-fused quinoxalinone has been developed via an Ugi four-component reaction (U-4CR) followed by an intramolecular Ullmann reaction. The expeditious process features an operatio...

(This article belongs to the Special Issue Synthesis and Properties of Heterocyclic Compounds: Recent Advances)
  • Article
  • Open Access
7 Citations
2,452 Views
22 Pages

Rational Design and Multicomponent Synthesis of Lipid–Peptoid Nanocomposites towards a Customized Drug Delivery System Assembly

  • Thaissa Pasquali F. Rosalba,
  • Guilherme D. R. Matos,
  • Carlos Eduardo M. Salvador and
  • Carlos Kleber Z. Andrade

28 July 2023

Nanotechnology has assumed a significant role over the last decade in the development of various technologies applied to health sciences. This becomes even more evident with its application in controlled drug delivery systems. In this context, peptoi...

(This article belongs to the Section Organic Chemistry)
  • Article
  • Open Access
21 Citations
4,793 Views
18 Pages

Access to New Cytotoxic Triterpene and Steroidal Acid-TEMPO Conjugates by Ugi Multicomponent-Reactions

  • Haider N. Sultani,
  • Ibrahim Morgan,
  • Hidayat Hussain,
  • Andreas H. Roos,
  • Haleh H. Haeri,
  • Goran N. Kaluđerović,
  • Dariush Hinderberger and
  • Bernhard Westermann

Multicomponent reactions, especially the Ugi-four component reaction (U-4CR), provide powerful protocols to efficiently access compounds having potent biological and pharmacological effects. Thus, a diverse library of betulinic acid (BA), fusidic aci...

(This article belongs to the Special Issue Theme Issue Honoring Prof. Dr. Ludger Wessjohann’s 60th Birthday: Natural Products in Modern Drug Discovery)
  • Article
  • Open Access
3 Citations
2,206 Views
23 Pages

27 July 2024

Natural compounds, including diterpenoids, play a critical role in various biological processes and are recognized as valuable components in cancer treatment. Isocyanides multicomponent reactions (IsMCRs) are one of the effective methods to obtain ad...

(This article belongs to the Section Medicinal Chemistry)