Abstract
The indole scaffold probably represents one of the most important structural subunits for the discovery of new drug candidates. The demonstration that many alkaloids contain the indole nucleus, the recognition of the importance of essential amino acid tryptophan in human nutrition and the discovery of plant hormones served to bring about a massive search on indole chemistry, giving rise to a vast number of biologically active natural and synthetic products, with a wide range of therapeutic targets, such as anti-inflammatories, phosphodiesterase inhibitors, 5-hydroxytryptamine receptor agonists and antagonists, cannabinoid receptors agonists and HMG-CoA reductase inhibitors. Many of these target-receptors belong to the class of GPCRs (integral membrane G-protein coupled receptors) and possess a conserved binding pocket that is recognized by the indole scaffold in a “common” complementary binding domain, explaining the great number of drugs that contain the indole substructure, such as indomethacin, ergotamine, frovatriptan, ondansetron, tadalafil, among many others.
Keywords: Indole scaffold, privileged structure, GPCR, bioisosterism, drug discovery
Mini-Reviews in Medicinal Chemistry
Title: From Nature to Drug Discovery: The Indole Scaffold as a ‘Privileged Structure’
Volume: 9 Issue: 7
Author(s): Fernando Rodrigues de Sa Alves, Eliezer J. Barreiro and Carlos Alberto Manssour Fraga
Affiliation:
Keywords: Indole scaffold, privileged structure, GPCR, bioisosterism, drug discovery
Abstract: The indole scaffold probably represents one of the most important structural subunits for the discovery of new drug candidates. The demonstration that many alkaloids contain the indole nucleus, the recognition of the importance of essential amino acid tryptophan in human nutrition and the discovery of plant hormones served to bring about a massive search on indole chemistry, giving rise to a vast number of biologically active natural and synthetic products, with a wide range of therapeutic targets, such as anti-inflammatories, phosphodiesterase inhibitors, 5-hydroxytryptamine receptor agonists and antagonists, cannabinoid receptors agonists and HMG-CoA reductase inhibitors. Many of these target-receptors belong to the class of GPCRs (integral membrane G-protein coupled receptors) and possess a conserved binding pocket that is recognized by the indole scaffold in a “common” complementary binding domain, explaining the great number of drugs that contain the indole substructure, such as indomethacin, ergotamine, frovatriptan, ondansetron, tadalafil, among many others.
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Cite this article as:
de Sa Alves Rodrigues Fernando, Barreiro J. Eliezer and Manssour Fraga Alberto Carlos, From Nature to Drug Discovery: The Indole Scaffold as a ‘Privileged Structure’, Mini-Reviews in Medicinal Chemistry 2009; 9 (7) . https://dx.doi.org/10.2174/138955709788452649
DOI https://dx.doi.org/10.2174/138955709788452649 |
Print ISSN 1389-5575 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5607 |
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