摘要:
Embedment of drug-like heterocyclic moieties was Successfully employed in the novel modification of the readily available but poorly bioactive natural alkaloid sinomenine. Application of the newly proposed approach afforded a number of more potent sinomenine-like molecules with a significantly high hit rate. Among these new analogous, up to 500-fold increase of in vitro immunosuppressive activity was achieved. Further biological experiments of representative compound 4b indicated that it might inhibit NF-kappa B activation induced by TNF-alpha in a dose dependent way and showed remarkable in vivo treatment effects against the mouse experimental autoimmune uveoretinitis (EAU) disease models. (C) 2009 Elsevier Ltd. All rights reserved.