Modulation of PPAR receptor subtype selectivity of the ligands: Aliphatic chain vs aromatic ring as a spacer between pharmacophore and the lipophilic moiety
摘要:
Oxazole containing glycine and oximinobutyric acid derivatives were synthesized as PPAR alpha agonists by incorporating polymethylene spacer as a replacement of commonly used phenylene group that connects the acidic head with lipophilic tail. Compound 13a was found to be a selective and potent PPAR alpha agonist. Further 1,3-dioxane-2-carboxylic acid derivative 20 was synthesized by replacing the tetramethylene spacer of NS-220, a selective PPAR alpha agonist with phenylene group and found to exhibit PPAR alpha/gamma dual agonism. These results suggest that compounds possessing polymethylene spacer between pharmacophore and lipophilic tail exhibit predominantly PPARa agonism whereas those with an aromatic phenylene spacer shows PPAR alpha/gamma dual agonism. (C) 2008 Elsevier Ltd. All rights reserved.
Modulation of PPAR receptor subtype selectivity of the ligands: Aliphatic chain vs aromatic ring as a spacer between pharmacophore and the lipophilic moiety
Oxazole containing glycine and oximinobutyric acid derivatives were synthesized as PPAR alpha agonists by incorporating polymethylene spacer as a replacement of commonly used phenylene group that connects the acidic head with lipophilic tail. Compound 13a was found to be a selective and potent PPAR alpha agonist. Further 1,3-dioxane-2-carboxylic acid derivative 20 was synthesized by replacing the tetramethylene spacer of NS-220, a selective PPAR alpha agonist with phenylene group and found to exhibit PPAR alpha/gamma dual agonism. These results suggest that compounds possessing polymethylene spacer between pharmacophore and lipophilic tail exhibit predominantly PPARa agonism whereas those with an aromatic phenylene spacer shows PPAR alpha/gamma dual agonism. (C) 2008 Elsevier Ltd. All rights reserved.