Dual RXR Agonists and RAR Antagonists Based on the Stilbene Retinoid Scaffold
摘要:
Arotinoids containing a C5,C8-diphenylnaphthalene-2-y1 ring linked to a (C3-halogenated) benzoic acid via an ethenyl connector (but not the corresponding naphthamides), which are prepared by Horner-Wadsworth-Emmons reaction of naphthaldehydes and benzylphosphonates, display the rather unusual property of being RXR agonists (15-fold induction of the RXR reporter cell line was achieved at 3- to 10-fold lower concentration than 9-cis-retinoic acid) and RAR antagonists as shown by transient transactivation studies. The binding of such bulky ligands suggests that the RXR ligand-binding domain is endowed with some degree of structural elasticity.
Dual RXR Agonists and RAR Antagonists Based on the Stilbene Retinoid Scaffold
摘要:
Arotinoids containing a C5,C8-diphenylnaphthalene-2-y1 ring linked to a (C3-halogenated) benzoic acid via an ethenyl connector (but not the corresponding naphthamides), which are prepared by Horner-Wadsworth-Emmons reaction of naphthaldehydes and benzylphosphonates, display the rather unusual property of being RXR agonists (15-fold induction of the RXR reporter cell line was achieved at 3- to 10-fold lower concentration than 9-cis-retinoic acid) and RAR antagonists as shown by transient transactivation studies. The binding of such bulky ligands suggests that the RXR ligand-binding domain is endowed with some degree of structural elasticity.
Modulation of Retinoic Acid Receptor Subtypes by 5- and 8-Substituted (Naphthalen-2-yl)-based Arotinoids
作者:Susana Álvarez、Michele Lieb、Claudio Martínez、Harshal Khanwalkar、Fátima Rodríguez-Barrios、Rosana Álvarez、Hinrich Gronemeyer、Angel R. de Lera
DOI:10.1002/cmdc.201500150
日期:2015.8
described dihydronaphthalene arotinoids with the same substitution pattern. Transactivation studies in this series revealed an absence of synergy between small halogen atoms (F, Cl) at C3 and the groups at C5 or C8, as had been observed on some of the dihydronaphthalene analogues. Instead, non‐halogenated 4‐(2‐naphthamido)benzoic acid derivatives transactivated toward the RARβ subtype in preference to the