New retinoid chemotypes: 9-cis-Retinoic acid analogs with hydrophobic rings derived from terpenes as selective RAR agonists
作者:Susana Álvarez、Yolanda Pazos-Randulfe、Harshal Khanwalkar、Pierre Germain、Rosana Álvarez、Hinrich Gronemeyer、Ángel R. de Lera
DOI:10.1016/j.bmc.2008.09.069
日期:2008.11
A series of 9-cis-retinoic acid analogs modified at the hydrophobic ring with a (bi)cyclohexenyl moiety derived from natural terpenes has been stereoselectively prepared using a Suzuki cross-coupling as key step. Transient transactivation studies indicate that modi. cation of the hydrophobic ring impacts dramatically on RXR-binding and transactivation, with most retinoids being inactive on RXR beta, while preserving their RAR pan-agonist pro. le. Furthermore, only the RAR gamma subtype was capable of enantiomeric discrimination with some pairs of enantiomeric terpene-retinoids. (C) 2008 Elsevier Ltd. All rights reserved.
Replacement of the hydrophobic part of 9-cis-retinoic acid with cyclic terpenoid moiety results in RXR-selective agonistic activity
Retinoid X receptor (RXR) agonists are interesting candidates for the treatment of metabolic syndrome. 9-Cis-retinoic acid (9cRA: 1) is a natural RXR agonist, that also works as a retinoic acid receptor (RAR) agonist. This fact prompted us to study the structure–activity relationship (SAR) of RXR agonists derived from 1. Though 3 and 4, in which the cyclohexene part of 1 is replaced with bulkier hydrophobic