The directarylation of 1,3-benzodioxole and 2,2-difluorobenzo[1,3]dioxole with 26 different aryl bromides yields the respective 4-substitued products in yields of >80% requiring between 0.05–1 mol % Na2PdCl4, 30 mol % pivalicacid, 1.3 equivs. K2CO3 and ca. 250 equivs. of diethylacetamide per Pd at T=120 °C. The nature of the amide and the concentration of the reactants are crucial for the optimization
Discovery of N-substituted oseltamivir derivatives as novel neuraminidase inhibitors with improved drug resistance profiles and favorable drug-like properties
To yield potent neuraminidase inhibitors with improved drug resistance and favorable drug-like properties, two series of novel oseltamivir derivatives targeting the 150-cavity of neuraminidase were designed, synthesized, and biologically evaluated. Among the synthesized compounds, the most potent compound 43b bearing 3-floro-4-cyclopentenylphenzyl moiety exhibited weaker or slightly improved inhibitory