SAR247799 (S1P1 agonist 3) is an orally-active, selective G-protein-biased agonist for the sphingosine-1 phosphate receptor-1 (S1P1). It demonstrates EC50 values ranging from 12.6 to 493 nM in S1P1-overexpressing cells and HUVECs. SAR247799 holds promise as a valuable tool for investigating endothelial protection, particularly in the context of type-2 diabetes and metabolic syndrome[4].