Stereoselective synthesis of β-alkoxy- and β-alkylthio-acrylic esters and amides from β-tosylacrylic derivatives
作者:Salvador Blaya、Rafael Chinchilla、Carmen Nájera
DOI:10.1016/0040-4020(95)00077-l
日期:1995.3
A simple and stereoselectivesynthesis of β-alkoxy- and β-alkylthio-acrylic esters and amides (8) by nucleophilic vinylic substitution of the tosyl group by sodium alcoholates and thiolates of (E)-β-tosylacrylic derivatives (7), prepared by iodosulfonylation-dehydroiodination of acrylic compounds, is described. This methodology is applied to the synthesis of sinharine (8eh) a natural antifungal isolated
an attractive drug target. Herein a series of novel phenyl vinyl sulfone based NLRP3 inflammasome inhibitors were designed, synthesized and biologically characterized. The most potent two hits 7a and 5b showed inhibition on the NLRP3 inflammasome with the IC50 of 1.83 ± 0.28 µM and 0.91 ± 0.06 µM, respectively. Further characterization confirmed their inhibition of NLRP3-mediated IL-1β release in vivo