Abstract
Privileged structures have been used in drug discovery targeting G protein-coupled receptors (GPCR) and other protein classes for more than 20 years. Their rich activity profiles and drug-like characteristics lend themselves to increased productivity in hit identification and lead optimisation. Recently we discovered two allosteric modulators 1 and 2 for the G protein-coupled receptor GPRC6A incorporating the privileged 2-phenyl-indole scaffold, functionalised at the 3-position. In order to develop new potential GPRC6A ligands we engaged in the development of synthetic routes to provide 2-phenyl-indoles with a variety of substituents at the indole 3-position. Herein we describe the development of optimised and efficient synthetic routes to a series of new 2-phenyl-indole building blocks 3 to 9 and show that these can be used to generate a broad variety of 3-substituted 2-phenyl-indoles of interest to medicinal chemists.
Original language | English |
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Journal | R S C Advances |
Volume | 3 |
Issue number | 3 |
Pages (from-to) | 945-960 |
ISSN | 2046-2069 |
DOIs | |
Publication status | Published - 21 Jan 2013 |