DMAP Catalyzed One-Pot Curtius Rearrangement Using 1,1-Dimethyl-2,2,2-trichloroethoxycarbonyl Azide
作者:Ken Lin、Hongjian Lu
DOI:10.1021/acs.orglett.3c01580
日期:2023.6.23
of a controllable, base-free, one-pot Curtius rearrangement using 1,1-dimethyl-2,2,2-trichloroethoxycarbonyl azide (DMTN3) with 4-(dimethylamino)pyridine (DMAP) as a catalyst. The scope of this catalytic process covers a range of primary, secondary, and tertiary alkyl and aryl carboxylic acids that allow the efficient stereospecific construction of alkyl or aryl isocyanates. Examples are reported of
Synthesis of 1,4-triazole linked zanamivir dimers as highly potent inhibitors of influenza A and B
作者:Benjamin H. Fraser、Stephanie Hamilton、Anwen M. Krause-Heuer、Philip J. Wright、Ivan Greguric、Simon P. Tucker、Alistair G. Draffan、Valery V. Fokin、K. Barry Sharpless
DOI:10.1039/c2md20300f
日期:——
The copper catalyzed azide alkyne cycloaddition (CuAAC) reaction – the quintessential ‘click’ reaction – was used to synthesise dimers of the neuraminidase inhibitor zanamivir in high yields. The effect upon anti-viral activity of varying the linker length and the number of triazole units was explored. All dimers were tested for anti-viral activity against influenza A/Sydney/5/97 and B/Harbin/7/94 in a cytopathic effect (CPE) assay.