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Updated: Aug 20, 2026

Prediction and Validation of Gene Regulatory Elements Activated During Retinoic Acid Induced Embryonic Stem Cell Differentiation
Published on: June 21, 2016
9-cis-retinoic acid analogues with bulky hydrophobic rings: new RXR-selective agonists
Rosana Alvarez1, M Jesús Vega, Sabrina Kammerer
1Departamento de Química Orgánica, Facultad de Química, Universidade de Vigo, 36200 Vigo, Spain.
Abstract:
Stille cross-coupling of aryltriflates 10 and dienylstannane 11, oxidation and Horner-Wadsworth-Emmons reaction afforded stereoselectively retinoates 15. Saponification provided the carboxylic acids 8a and 8b, retinoids that incorporate a bulky hydrophobic ring while preserving the 9-cis-geometry of the parent system. In contrast to the pan-RAR/RXR agonistic profile of the lower homologue of 8a, compound 7 (LG100567), retinoids 8 showed selective binding and transactivation of RXR, devoid of significant RAR activation. In PLB985 leukemia cells that require RXR agonists for differentiation compounds 8 induced maturation in the presence of the RAR-selective pan-agonist TTNPB; this effect was blocked by an RXR-selective antagonist.
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