Peroxisome proliferator-activated receptors which comprise three subtypes (PPAR alpha, deltaand gamma) have recently received significant attention due to their function as transcription factors that regulate gene expression patterns of biological processes. Among these subtypes, PPAR deltais related to various metabolic diseases. In this regard, diverse strategies for development of PPAR delta modulators have been widely studied. Recently, GlaxoSmithKline discovered highly potent and selective PPARdelta agonists such as GW501516 and GW610742. Based on these model compounds, several types of PPAR delta agonists have been devised. To this extent, GW501516 modified “Y”-shaped PPARdelta specific agonists were reported by Kang group. Evans group also reported new type of “Y”-shaped PPARdelta agonists. Based on these works, we designed and synthesized various “Y”-shaped biaryl PPARdelta agonists. Structure-activity relationship (SAR) analysis was performed to find title compound 1 that the most active agonist with an EC50 of 2.6 nM. Activity of enantiospecific R and S isomers of compound 1 was confirmed that R isomer (EC50 = 0.7 nM) shows much more potent activity than S isomer (EC50 = 6.1 nM). Molecular docking studies between the PPAR ligand binding domain and enantiospecific R and S isomers of compound 1 were conducted. In vitro absorption, distribution, metabolism, excretion, and toxicity (ADMET) and in vivo PK profiles show that compound 1 involves reasonable drug-like properties and good bioavailability. Our overall results clearly demonstrate that this orally available PPAR delta agonist 1 is a viable drug candidate for the treatment of PPAR delta-related diseased. |