Potent and Selective Agonists of Sphingosine 1-Phosphate 1 (S1P1): Discovery and SAR of a Novel Isoxazole Based Series
摘要:
Sphingosine 1-phosphate (S1P) is the endogenous ligand for the sphingosine 1-phosphate receptors (S1P(1-5)) and evokes a variety of cellular responses through their stimulation. The interaction of S1P with the S1P receptors plays a fundamental physiological role in a number of processes including vascular development and stabilization, lymphocyte migration, and proliferation. Agonism of S1P(1), in particular, has been shown to play a significant role in lymphocyte trafficking from the thymus and secondary lymphoid organs, resulting in immunosuppression. This article will detail the discovery and SAR of a potent and selective series of isoxazole based full agonists of S1P(1). Isoxazole 6d demonstrated impressive efficacy when administered orally in a rat model of arthritis and in a mouse experimental autoimmune encephalomyelitis (EAE) model of multiple sclerosis.
[EN] SUBSTITUTED OXADIAZOLE DERIVATIVES AS S1P AGONISTS IN THE TREATMENT OF AUTOIMMUNE AND INFLAMMATORY DISEASES [FR] DÉRIVÉS D'OXADIAZOLE SUBSTITUÉS COMME AGONISTES DE S1P DANS LE TRAITEMENT DE MALADIES AUTO-IMMUNES ET INFLAMMATOIRES