Sphingosine kinase (SphK)-catalyzed production of sphingosine-1-phosphate (S1P) regulates cell growth, survival and proliferation as well as inflammatory status in animals. In recent study we reported the N'-(3-(benzyloxy)benzylidene)-3,4,5-trihydroxybenzohydrazide scaffold as a potent SphK inhibitor. As a continuation of these efforts, 51 derivatives were synthesized and evaluated by SphK1/2 inhibitory activities for structure-activity relationship (SAR) study. Among them, 33 was identified as the most potent SphK inhibitor. Potency of 33 was also observed to efficiently decrease SphK1/2 expression in human colorectal cancer cells (HCT116) and significantly inhibit dextran sodium sulfate (DSS)-induced colitis as well as the decreased expression of interleukin (IL)-6 and cyclooxygenase-2 (COX-2) in mouse models. Collectively, 33 was validated as an effective SphK inhibitor, which can be served as anti-inflammatory agent to probably treat inflammatory bowel diseases in human. (C) 2016 Elsevier Ltd. All rights reserved.
Synthesis, in vitro, in silico and in vivo hypoglycemic and lipid-lowering effects of 4-benzyloxy-5-benzylidene-1,3-thiazolidine-2,4-diones mediated by dual PPAR α/γ modulation
作者:José Luis Madrigal-Angulo、Carlos Ménez-Guerrero、Samuel Estrada-Soto、Juan José Ramírez-Espinosa、Julio César Almanza-Pérez、Ismael León-Rivera、Emanuel Hernández-Núñez、Yoshajandith Aguirre-Vidal、Carlos D. Flores-León、Rodrigo Aguayo-Ortíz、Gabriel Navarrete-Vazquez
DOI:10.1016/j.bmcl.2022.128804
日期:2022.8
Discovery of highly potent and selective influenza virus neuraminidase inhibitors targeting 150-cavity
Encouraged by our earlier discovery of N1-selective inhibitors, the 150-cavity of influenzavirus neuraminidases (NAs) could be further exploited to yield more potent oseltamivir derivatives. Herein, we report the design, synthesis and biological evaluation of a series of novel oseltamivir derivatives via the structural modifications at C5–NH2 of oseltamivir targeting 150-cavity. Among them, compound